Merge pull request #3889 from pi-hole/release/v5.2.1v5.2.1

Pi-hole Core release v5.2.1

36 files changed, 469 insertions, 413 deletions

diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 00000000..8e19e550
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,25 @@
+name: Test Supported Distributions
+
+on:
+  pull_request:
+    types: [opened, synchronize, reopened, ready_for_review]
+
+jobs:
+  distro-test:
+    if: github.event.pull_request.draft == false
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        distro: [debian_9, debian_10, ubuntu_16, ubuntu_18, ubuntu_20, centos_7, centos_8, fedora_31, fedora_32]
+    env:
+      DISTRO: ${{matrix.distro}}
+    steps:
+    - uses: actions/checkout@v1
+    - name: Set up Python 3.7
+      uses: actions/setup-python@v2
+      with:
+        python-version: 3.7
+    - name: Install dependencies
+      run: pip install -r test/requirements.txt
+    - name: Test with tox
+      run: tox -c test/tox.${DISTRO}.ini
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 3d80ab6e..00000000
--- a/.travis.yml
+++ /dev/null
@@ -1,5 +0,0 @@
-import:
-  - source: pi-hole/.github:/build-configs/core.yml@main
-    if: branch = master
-  - source: pi-hole/.github:/build-configs/core.yml@latest
-    if: branch != master
diff --git a/advanced/Scripts/piholeDebug.sh b/advanced/Scripts/piholeDebug.sh
index 5c2b5f1c..bc83d70a 100755
--- a/advanced/Scripts/piholeDebug.sh
+++ b/advanced/Scripts/piholeDebug.sh
@@ -560,7 +560,7 @@ processor_check() {
     else
         # Check if the architecture is currently supported for FTL
         case "${PROCESSOR}" in
-            "amd64") log_write "${TICK} ${COL_GREEN}${PROCESSOR}${COL_NC}"
+            "amd64" | "x86_64") log_write "${TICK} ${COL_GREEN}${PROCESSOR}${COL_NC}"
                 ;;
             "armv6l") log_write "${TICK} ${COL_GREEN}${PROCESSOR}${COL_NC}"
                 ;;
@@ -977,7 +977,7 @@ make_array_from_file() {
         # Otherwise, read the file line by line
         while IFS= read -r line;do
             # Othwerise, strip out comments and blank lines
-            new_line=$(echo "${line}" | sed -e 's/#.*$//' -e '/^$/d')
+            new_line=$(echo "${line}" | sed -e 's/^\s*#.*$//' -e '/^$/d')
             # If the line still has content (a non-zero value)
             if [[ -n "${new_line}" ]]; then
                 # Put it into the array
diff --git a/advanced/Scripts/webpage.sh b/advanced/Scripts/webpage.sh
index 15471ad4..f26ce11d 100755
--- a/advanced/Scripts/webpage.sh
+++ b/advanced/Scripts/webpage.sh
@@ -217,6 +217,12 @@ trust-anchor=.,20326,8,2,E06D44B80B8F1D39A95C0B0D7C65D08458E880409BBC68345710423
 
     if [[ "${CONDITIONAL_FORWARDING}" == true ]]; then
         # Convert legacy "conditional forwarding" to rev-server configuration
+        # Remove any existing REV_SERVER settings
+        delete_setting "REV_SERVER"
+        delete_setting "REV_SERVER_DOMAIN"
+        delete_setting "REV_SERVER_TARGET"
+        delete_setting "REV_SERVER_CIDR"
+
         REV_SERVER=true
         add_setting "REV_SERVER" "true"
 
@@ -226,7 +232,25 @@ trust-anchor=.,20326,8,2,E06D44B80B8F1D39A95C0B0D7C65D08458E880409BBC68345710423
         REV_SERVER_TARGET="${CONDITIONAL_FORWARDING_IP}"
         add_setting "REV_SERVER_TARGET" "${REV_SERVER_TARGET}"
 
-        REV_SERVER_CIDR="${CONDITIONAL_FORWARDING_REVERSE}"
+        #Convert CONDITIONAL_FORWARDING_REVERSE if necessary e.g:
+        #          1.1.168.192.in-addr.arpa to 192.168.1.1/32
+        #          1.168.192.in-addr.arpa to 192.168.1.0/24
+        #          168.192.in-addr.arpa to 192.168.0.0/16
+        #          192.in-addr.arpa to 192.0.0.0/8
+        if [[ "${CONDITIONAL_FORWARDING_REVERSE}" == *"in-addr.arpa" ]];then
+            arrRev=("${CONDITIONAL_FORWARDING_REVERSE//./ }")        
+            case ${#arrRev[@]} in 
+                6   )   REV_SERVER_CIDR="${arrRev[3]}.${arrRev[2]}.${arrRev[1]}.${arrRev[0]}/32";;
+                5   )   REV_SERVER_CIDR="${arrRev[2]}.${arrRev[1]}.${arrRev[0]}.0/24";;
+                4   )   REV_SERVER_CIDR="${arrRev[1]}.${arrRev[0]}.0.0/16";;
+                3   )   REV_SERVER_CIDR="${arrRev[0]}.0.0.0/8";; 
+            esac
+        else
+          # Set REV_SERVER_CIDR to whatever value it was set to
+          REV_SERVER_CIDR="${CONDITIONAL_FORWARDING_REVERSE}"
+        fi
+        
+        # If REV_SERVER_CIDR is not converted by the above, then use the REV_SERVER_TARGET variable to derive it
         if [ -z "${REV_SERVER_CIDR}" ]; then
             # Convert existing input to /24 subnet (preserves legacy behavior)
             # This sed converts "192.168.1.2" to "192.168.1.0/24"
@@ -253,6 +277,13 @@ trust-anchor=.,20326,8,2,E06D44B80B8F1D39A95C0B0D7C65D08458E880409BBC68345710423
     # This follows https://support.mozilla.org/en-US/kb/configuring-networks-disable-dns-over-https
     # (sourced 7th September 2019)
     add_dnsmasq_setting "server=/use-application-dns.net/"
+
+    # We need to process DHCP settings here as well to account for possible
+    # changes in the non-FQDN forwarding. This cannot be done in 01-pihole.conf
+    # as we don't want to delete all local=/.../ lines so it's much safer to
+    # simply rewrite the entire corresponding config file (which is what the
+    # DHCP settings subroutie is doing)
+    ProcessDHCPSettings
 }
 
 SetDNSServers() {
@@ -375,6 +406,11 @@ dhcp-leasefile=/etc/pihole/dhcp.leases
 
     if [[ "${PIHOLE_DOMAIN}" != "none" ]]; then
         echo "domain=${PIHOLE_DOMAIN}" >> "${dhcpconfig}"
+
+        # When there is a Pi-hole domain set and "Never forward non-FQDNs" is
+        # ticked, we add `local=/domain/` to tell FTL that this domain is purely
+        # local and FTL may answer queries from /etc/hosts or DHCP but should
+        # never forward queries on that domain to any upstream servers
         if  [[ "${DNS_FQDN_REQUIRED}" == true ]]; then
           echo "local=/${PIHOLE_DOMAIN}/" >> "${dhcpconfig}"
         fi
diff --git a/automated install/basic-install.sh b/automated install/basic-install.sh
index 21e699c7..45e96354 100755
--- a/automated install/basic-install.sh
+++ b/automated install/basic-install.sh
@@ -393,7 +393,7 @@ elif is_command rpm ; then
     PKG_INSTALL=("${PKG_MANAGER}" install -y)
     PKG_COUNT="${PKG_MANAGER} check-update | egrep '(.i686|.x86|.noarch|.arm|.src)' | wc -l"
     INSTALLER_DEPS=(git iproute newt procps-ng which chkconfig bind-utils)
-    PIHOLE_DEPS=(cronie curl findutils nmap-ncat sudo unzip libidn2 psmisc sqlite libcap)
+    PIHOLE_DEPS=(cronie curl findutils nmap-ncat sudo unzip libidn2 psmisc sqlite libcap lsof)
     PIHOLE_WEB_DEPS=(lighttpd lighttpd-fastcgi php-common php-cli php-pdo php-xml php-json php-intl)
     LIGHTTPD_USER="lighttpd"
     LIGHTTPD_GROUP="lighttpd"
@@ -528,8 +528,10 @@ make_repo() {
     printf "  %b %s..." "${INFO}" "${str}"
     # If the directory exists,
     if [[ -d "${directory}" ]]; then
-        # delete everything in it so git can clone into it
-        rm -rf "${directory}"
+        # Return with a 1 to exit the installer. We don't want to overwrite what could already be here in case it is not ours
+        str="Unable to clone ${remoteRepo} into ${directory} : Directory already exists"
+        printf "%b  %b%s\\n" "${OVER}" "${CROSS}" "${str}"
+        return 1
     fi
     # Clone the repo and return the return code from this command
     git clone -q --depth 20 "${remoteRepo}" "${directory}" &> /dev/null || return $?
@@ -1913,7 +1915,7 @@ finalExports() {
     # If the setup variable file exists,
     if [[ -e "${setupVars}" ]]; then
         # update the variables in the file
-        sed -i.update.bak '/PIHOLE_INTERFACE/d;/IPV4_ADDRESS/d;/IPV6_ADDRESS/d;/PIHOLE_DNS_1/d;/PIHOLE_DNS_2/d;/QUERY_LOGGING/d;/INSTALL_WEB_SERVER/d;/INSTALL_WEB_INTERFACE/d;/LIGHTTPD_ENABLED/d;/CACHE_SIZE/d;' "${setupVars}"
+        sed -i.update.bak '/PIHOLE_INTERFACE/d;/IPV4_ADDRESS/d;/IPV6_ADDRESS/d;/PIHOLE_DNS_1\b/d;/PIHOLE_DNS_2\b/d;/QUERY_LOGGING/d;/INSTALL_WEB_SERVER/d;/INSTALL_WEB_INTERFACE/d;/LIGHTTPD_ENABLED/d;/CACHE_SIZE/d;' "${setupVars}"
     fi
     # echo the information to the user
     {
diff --git a/autotest b/autotest
deleted file mode 100755
index 3747cc0b..00000000
--- a/autotest
+++ /dev/null
@@ -1 +0,0 @@
-py.test -v -f test/
diff --git a/test/centos_7.Dockerfile b/test/_centos_7.Dockerfile
index 00543b67..00543b67 100644
--- a/test/centos_7.Dockerfile
+++ b/test/_centos_7.Dockerfile
diff --git a/test/centos_8.Dockerfile b/test/_centos_8.Dockerfile
index 7444551b..7444551b 100644
--- a/test/centos_8.Dockerfile
+++ b/test/_centos_8.Dockerfile
diff --git a/test/debian_10.Dockerfile b/test/_debian_10.Dockerfile
index 9b72fc6a..9b72fc6a 100644
--- a/test/debian_10.Dockerfile
+++ b/test/_debian_10.Dockerfile
diff --git a/test/debian_9.Dockerfile b/test/_debian_9.Dockerfile
index d6609ba3..d6609ba3 100644
--- a/test/debian_9.Dockerfile
+++ b/test/_debian_9.Dockerfile
diff --git a/test/fedora_31.Dockerfile b/test/_fedora_31.Dockerfile
index 02dcb733..02dcb733 100644
--- a/test/fedora_31.Dockerfile
+++ b/test/_fedora_31.Dockerfile
diff --git a/test/fedora_32.Dockerfile b/test/_fedora_32.Dockerfile
index 869efb2b..869efb2b 100644
--- a/test/fedora_32.Dockerfile
+++ b/test/_fedora_32.Dockerfile
diff --git a/test/ubuntu_16.Dockerfile b/test/_ubuntu_16.Dockerfile
index d1107082..a92bc6f6 100644
--- a/test/ubuntu_16.Dockerfile
+++ b/test/_ubuntu_16.Dockerfile
@@ -13,4 +13,4 @@ RUN true && \
 
 ENV PH_TEST true
 
-#sed '/# Start the installer/Q' /opt/pihole/basic-install.sh > /opt/pihole/stub_basic-install.sh && \
+#sed '/# Start the installer/Q' /opt/pihole/basic-install.sh > /opt/pihole/stub_basic-install.sh && \
\ No newline at end of file
diff --git a/test/ubuntu_18.Dockerfile b/test/_ubuntu_18.Dockerfile
index 2f63ea89..2f63ea89 100644
--- a/test/ubuntu_18.Dockerfile
+++ b/test/_ubuntu_18.Dockerfile
diff --git a/test/ubuntu_20.Dockerfile b/test/_ubuntu_20.Dockerfile
index caa6261f..caa6261f 100644
--- a/test/ubuntu_20.Dockerfile
+++ b/test/_ubuntu_20.Dockerfile
diff --git a/test/conftest.py b/test/conftest.py
index cda861c1..07166ec5 100644
--- a/test/conftest.py
+++ b/test/conftest.py
@@ -70,15 +70,7 @@ def args(request):
 
 
 @pytest.fixture(params=[
-    'debian_9',
-    'debian_10',
-    'centos_7',
-    'centos_8',
-    'fedora_31',
-    'fedora_32',
-    'ubuntu_16',
-    'ubuntu_18',
-    'ubuntu_20'
+    'test_container'
 ])
 def tag(request):
     '''
diff --git a/requirements.txt b/test/requirements.txt
index 17d62ad9..17d62ad9 100644
--- a/requirements.txt
+++ b/test/requirements.txt
diff --git a/setup.py b/test/setup.py
index 0e393bc1..0e393bc1 100644
--- a/setup.py
+++ b/test/setup.py
diff --git a/test/test_000_build_containers.py b/test/test_000_build_containers.py
deleted file mode 100644
index 3033249f..00000000
--- a/test/test_000_build_containers.py
+++ /dev/null
@@ -1,29 +0,0 @@
-''' This file starts with 000 to make it run first '''
-import pytest
-import testinfra
-
-run_local = testinfra.get_backend(
-    "local://"
-).get_module("Command").run
-
-
-@pytest.mark.parametrize("image,tag", [
-    ('test/debian_9.Dockerfile', 'pytest_pihole:debian_9'),
-    ('test/debian_10.Dockerfile', 'pytest_pihole:debian_10'),
-    ('test/centos_7.Dockerfile', 'pytest_pihole:centos_7'),
-    ('test/centos_8.Dockerfile', 'pytest_pihole:centos_8'),
-    ('test/fedora_31.Dockerfile', 'pytest_pihole:fedora_31'),
-    ('test/fedora_32.Dockerfile', 'pytest_pihole:fedora_32'),
-    ('test/ubuntu_16.Dockerfile', 'pytest_pihole:ubuntu_16'),
-    ('test/ubuntu_18.Dockerfile', 'pytest_pihole:ubuntu_18'),
-    ('test/ubuntu_20.Dockerfile', 'pytest_pihole:ubuntu_20'),
-])
-# mark as 'build_stage' so we can ensure images are built first when tests
-# are executed in parallel. (not required when tests are executed serially)
-@pytest.mark.build_stage
-def test_build_pihole_image(image, tag):
-    build_cmd = run_local('docker build -f {} -t {} .'.format(image, tag))
-    if build_cmd.rc != 0:
-        print(build_cmd.stdout)
-        print(build_cmd.stderr)
-    assert build_cmd.rc == 0
diff --git a/test/test_centos_7_support.py b/test/test_centos_7_support.py
new file mode 100644
index 00000000..2f744ab4
--- /dev/null
+++ b/test/test_centos_7_support.py
@@ -0,0 +1,60 @@
+from .conftest import (
+    tick_box,
+    info_box,
+    mock_command,
+)
+
+
+def test_php_upgrade_default_optout_centos_eq_7(Pihole):
+    '''
+    confirms the default behavior to opt-out of installing PHP7 from REMI
+    '''
+    distro_check = Pihole.run('''
+    source /opt/pihole/basic-install.sh
+    distro_check
+    ''')
+    expected_stdout = info_box + (' User opt-out of PHP 7 upgrade on CentOS. '
+                                  'Deprecated PHP may be in use.')
+    assert expected_stdout in distro_check.stdout
+    remi_package = Pihole.package('remi-release')
+    assert not remi_package.is_installed
+
+
+def test_php_upgrade_user_optout_centos_eq_7(Pihole):
+    '''
+    confirms installer behavior when user opt-out of installing PHP7 from REMI
+    (php not currently installed)
+    '''
+    # Whiptail dialog returns Cancel for user prompt
+    mock_command('whiptail', {'*': ('', '1')}, Pihole)
+    distro_check = Pihole.run('''
+    source /opt/pihole/basic-install.sh
+    distro_check
+    ''')
+    expected_stdout = info_box + (' User opt-out of PHP 7 upgrade on CentOS. '
+                                  'Deprecated PHP may be in use.')
+    assert expected_stdout in distro_check.stdout
+    remi_package = Pihole.package('remi-release')
+    assert not remi_package.is_installed
+
+
+def test_php_upgrade_user_optin_centos_eq_7(Pihole):
+    '''
+    confirms installer behavior when user opt-in to installing PHP7 from REMI
+    (php not currently installed)
+    '''
+    # Whiptail dialog returns Continue for user prompt
+    mock_command('whiptail', {'*': ('', '0')}, Pihole)
+    distro_check = Pihole.run('''
+    source /opt/pihole/basic-install.sh
+    distro_check
+    ''')
+    assert 'opt-out' not in distro_check.stdout
+    expected_stdout = info_box + (' Enabling Remi\'s RPM repository '
+                                  '(https://rpms.remirepo.net)')
+    assert expected_stdout in distro_check.stdout
+    expected_stdout = tick_box + (' Remi\'s RPM repository has '
+                                  'been enabled for PHP7')
+    assert expected_stdout in distro_check.stdout
+    remi_package = Pihole.package('remi-release')
+    assert remi_package.is_installed
diff --git a/test/test_centos_8_support.py b/test/test_centos_8_support.py
new file mode 100644
index 00000000..d3e83658
--- /dev/null
+++ b/test/test_centos_8_support.py
@@ -0,0 +1,65 @@
+from .conftest import (
+    tick_box,
+    info_box,
+    mock_command,
+)
+
+
+def test_php_upgrade_default_continue_centos_gte_8(Pihole):
+    '''
+    confirms the latest version of CentOS continues / does not optout
+    (should trigger on CentOS7 only)
+    '''
+    distro_check = Pihole.run('''
+    source /opt/pihole/basic-install.sh
+    distro_check
+    ''')
+    unexpected_stdout = info_box + (' User opt-out of PHP 7 upgrade on CentOS.'
+                                    ' Deprecated PHP may be in use.')
+    assert unexpected_stdout not in distro_check.stdout
+    # ensure remi was not installed on latest CentOS
+    remi_package = Pihole.package('remi-release')
+    assert not remi_package.is_installed
+
+
+def test_php_upgrade_user_optout_skipped_centos_gte_8(Pihole):
+    '''
+    confirms installer skips user opt-out of installing PHP7 from REMI on
+    latest CentOS (should trigger on CentOS7 only)
+    (php not currently installed)
+    '''
+    # Whiptail dialog returns Cancel for user prompt
+    mock_command('whiptail', {'*': ('', '1')}, Pihole)
+    distro_check = Pihole.run('''
+    source /opt/pihole/basic-install.sh
+    distro_check
+    ''')
+    unexpected_stdout = info_box + (' User opt-out of PHP 7 upgrade on CentOS.'
+                                    ' Deprecated PHP may be in use.')
+    assert unexpected_stdout not in distro_check.stdout
+    # ensure remi was not installed on latest CentOS
+    remi_package = Pihole.package('remi-release')
+    assert not remi_package.is_installed
+
+
+def test_php_upgrade_user_optin_skipped_centos_gte_8(Pihole):
+    '''
+    confirms installer skips user opt-in to installing PHP7 from REMI on
+    latest CentOS (should trigger on CentOS7 only)
+    (php not currently installed)
+    '''
+    # Whiptail dialog returns Continue for user prompt
+    mock_command('whiptail', {'*': ('', '0')}, Pihole)
+    distro_check = Pihole.run('''
+    source /opt/pihole/basic-install.sh
+    distro_check
+    ''')
+    assert 'opt-out' not in distro_check.stdout
+    unexpected_stdout = info_box + (' Enabling Remi\'s RPM repository '
+                                    '(https://rpms.remirepo.net)')
+    assert unexpected_stdout not in distro_check.stdout
+    unexpected_stdout = tick_box + (' Remi\'s RPM repository has '
+                                    'been enabled for PHP7')
+    assert unexpected_stdout not in distro_check.stdout
+    remi_package = Pihole.package('remi-release')
+    assert not remi_package.is_installed
diff --git a/test/test_centos_common_support.py b/test/test_centos_common_support.py
new file mode 100644
index 00000000..fdf43cba
--- /dev/null
+++ b/test/test_centos_common_support.py
@@ -0,0 +1,120 @@
+import pytest
+from .conftest import (
+    tick_box,
+    info_box,
+    cross_box,
+    mock_command,
+)
+
+
+def test_release_supported_version_check_centos(Pihole):
+    '''
+    confirms installer exits on unsupported releases of CentOS
+    '''
+    # modify /etc/redhat-release to mock an unsupported CentOS release
+    Pihole.run('echo "CentOS Linux release 6.9" > /etc/redhat-release')
+    distro_check = Pihole.run('''
+    source /opt/pihole/basic-install.sh
+    distro_check
+    ''')
+    expected_stdout = cross_box + (' CentOS 6 is not supported.')
+    assert expected_stdout in distro_check.stdout
+    expected_stdout = 'Please update to CentOS release 7 or later'
+    assert expected_stdout in distro_check.stdout
+
+
+def test_enable_epel_repository_centos(Pihole):
+    '''
+    confirms the EPEL package repository is enabled when installed on CentOS
+    '''
+    distro_check = Pihole.run('''
+    source /opt/pihole/basic-install.sh
+    distro_check
+    ''')
+    expected_stdout = info_box + (' Enabling EPEL package repository '
+                                  '(https://fedoraproject.org/wiki/EPEL)')
+    assert expected_stdout in distro_check.stdout
+    expected_stdout = tick_box + ' Installed epel-release'
+    assert expected_stdout in distro_check.stdout
+    epel_package = Pihole.package('epel-release')
+    assert epel_package.is_installed
+
+
+def test_php_version_lt_7_detected_upgrade_default_optout_centos(Pihole):
+    '''
+    confirms the default behavior to opt-out of upgrading to PHP7 from REMI
+    '''
+    # first we will install the default php version to test installer behavior
+    php_install = Pihole.run('yum install -y php')
+    assert php_install.rc == 0
+    php_package = Pihole.package('php')
+    default_centos_php_version = php_package.version.split('.')[0]
+    if int(default_centos_php_version) >= 7:  # PHP7 is supported/recommended
+        pytest.skip("Test deprecated . Detected default PHP version >= 7")
+    distro_check = Pihole.run('''
+    source /opt/pihole/basic-install.sh
+    distro_check
+    ''')
+    expected_stdout = info_box + (' User opt-out of PHP 7 upgrade on CentOS. '
+                                  'Deprecated PHP may be in use.')
+    assert expected_stdout in distro_check.stdout
+    remi_package = Pihole.package('remi-release')
+    assert not remi_package.is_installed
+
+
+def test_php_version_lt_7_detected_upgrade_user_optout_centos(Pihole):
+    '''
+    confirms installer behavior when user opt-out to upgrade to PHP7 via REMI
+    '''
+    # first we will install the default php version to test installer behavior
+    php_install = Pihole.run('yum install -y php')
+    assert php_install.rc == 0
+    php_package = Pihole.package('php')
+    default_centos_php_version = php_package.version.split('.')[0]
+    if int(default_centos_php_version) >= 7:  # PHP7 is supported/recommended
+        pytest.skip("Test deprecated . Detected default PHP version >= 7")
+    # Whiptail dialog returns Cancel for user prompt
+    mock_command('whiptail', {'*': ('', '1')}, Pihole)
+    distro_check = Pihole.run('''
+    source /opt/pihole/basic-install.sh
+    distro_check
+    ''')
+    expected_stdout = info_box + (' User opt-out of PHP 7 upgrade on CentOS. '
+                                  'Deprecated PHP may be in use.')
+    assert expected_stdout in distro_check.stdout
+    remi_package = Pihole.package('remi-release')
+    assert not remi_package.is_installed
+
+
+def test_php_version_lt_7_detected_upgrade_user_optin_centos(Pihole):
+    '''
+    confirms installer behavior when user opt-in to upgrade to PHP7 via REMI
+    '''
+    # first we will install the default php version to test installer behavior
+    php_install = Pihole.run('yum install -y php')
+    assert php_install.rc == 0
+    php_package = Pihole.package('php')
+    default_centos_php_version = php_package.version.split('.')[0]
+    if int(default_centos_php_version) >= 7:  # PHP7 is supported/recommended
+        pytest.skip("Test deprecated . Detected default PHP version >= 7")
+    # Whiptail dialog returns Continue for user prompt
+    mock_command('whiptail', {'*': ('', '0')}, Pihole)
+    distro_check = Pihole.run('''
+    source /opt/pihole/basic-install.sh
+    distro_check
+    install_dependent_packages PIHOLE_WEB_DEPS[@]
+    ''')
+    expected_stdout = info_box + (' User opt-out of PHP 7 upgrade on CentOS. '
+                                  'Deprecated PHP may be in use.')
+    assert expected_stdout not in distro_check.stdout
+    expected_stdout = info_box + (' Enabling Remi\'s RPM repository '
+                                  '(https://rpms.remirepo.net)')
+    assert expected_stdout in distro_check.stdout
+    expected_stdout = tick_box + (' Remi\'s RPM repository has '
+                                  'been enabled for PHP7')
+    assert expected_stdout in distro_check.stdout
+    remi_package = Pihole.package('remi-release')
+    assert remi_package.is_installed
+    updated_php_package = Pihole.package('php')
+    updated_php_version = updated_php_package.version.split('.')[0]
+    assert int(updated_php_version) == 7
diff --git a/test/test_centos_fedora_common_support.py b/test/test_centos_fedora_common_support.py
new file mode 100644
index 00000000..21ae6d1d
--- /dev/null
+++ b/test/test_centos_fedora_common_support.py
@@ -0,0 +1,65 @@
+from .conftest import (
+    tick_box,
+    cross_box,
+    mock_command,
+)
+
+
+def mock_selinux_config(state, Pihole):
+    '''
+    Creates a mock SELinux config file with expected content
+    '''
+    # validate state string
+    valid_states = ['enforcing', 'permissive', 'disabled']
+    assert state in valid_states
+    # getenforce returns the running state of SELinux
+    mock_command('getenforce', {'*': (state.capitalize(), '0')}, Pihole)
+    # create mock configuration with desired content
+    Pihole.run('''
+    mkdir /etc/selinux
+    echo "SELINUX={state}" > /etc/selinux/config
+    '''.format(state=state.lower()))
+
+
+def test_selinux_enforcing_exit(Pihole):
+    '''
+    confirms installer prompts to exit when SELinux is Enforcing by default
+    '''
+    mock_selinux_config("enforcing", Pihole)
+    check_selinux = Pihole.run('''
+    source /opt/pihole/basic-install.sh
+    checkSelinux
+    ''')
+    expected_stdout = cross_box + ' Current SELinux: Enforcing'
+    assert expected_stdout in check_selinux.stdout
+    expected_stdout = 'SELinux Enforcing detected, exiting installer'
+    assert expected_stdout in check_selinux.stdout
+    assert check_selinux.rc == 1
+
+
+def test_selinux_permissive(Pihole):
+    '''
+    confirms installer continues when SELinux is Permissive
+    '''
+    mock_selinux_config("permissive", Pihole)
+    check_selinux = Pihole.run('''
+    source /opt/pihole/basic-install.sh
+    checkSelinux
+    ''')
+    expected_stdout = tick_box + ' Current SELinux: Permissive'
+    assert expected_stdout in check_selinux.stdout
+    assert check_selinux.rc == 0
+
+
+def test_selinux_disabled(Pihole):
+    '''
+    confirms installer continues when SELinux is Disabled
+    '''
+    mock_selinux_config("disabled", Pihole)
+    check_selinux = Pihole.run('''
+    source /opt/pihole/basic-install.sh
+    checkSelinux
+    ''')
+    expected_stdout = tick_box + ' Current SELinux: Disabled'
+    assert expected_stdout in check_selinux.stdout
+    assert check_selinux.rc == 0
diff --git a/test/test_centos_fedora_support.py b/test/test_centos_fedora_support.py
deleted file mode 100644
index 8dd0ee5f..00000000
--- a/test/test_centos_fedora_support.py
+++ /dev/null
@@ -1,327 +0,0 @@
-import pytest
-from .conftest import (
-    tick_box,
-    info_box,
-    cross_box,
-    mock_command,
-)
-
-
-def mock_selinux_config(state, Pihole):
-    '''
-    Creates a mock SELinux config file with expected content
-    '''
-    # validate state string
-    valid_states = ['enforcing', 'permissive', 'disabled']
-    assert state in valid_states
-    # getenforce returns the running state of SELinux
-    mock_command('getenforce', {'*': (state.capitalize(), '0')}, Pihole)
-    # create mock configuration with desired content
-    Pihole.run('''
-    mkdir /etc/selinux
-    echo "SELINUX={state}" > /etc/selinux/config
-    '''.format(state=state.lower()))
-
-
-@pytest.mark.parametrize("tag", [('centos_7'), ('centos_8'), ('fedora_31'), ('fedora_32'), ])
-def test_selinux_enforcing_exit(Pihole):
-    '''
-    confirms installer prompts to exit when SELinux is Enforcing by default
-    '''
-    mock_selinux_config("enforcing", Pihole)
-    check_selinux = Pihole.run('''
-    source /opt/pihole/basic-install.sh
-    checkSelinux
-    ''')
-    expected_stdout = cross_box + ' Current SELinux: Enforcing'
-    assert expected_stdout in check_selinux.stdout
-    expected_stdout = 'SELinux Enforcing detected, exiting installer'
-    assert expected_stdout in check_selinux.stdout
-    assert check_selinux.rc == 1
-
-
-@pytest.mark.parametrize("tag", [('centos_7'), ('centos_8'), ('fedora_31'), ('fedora_32'), ])
-def test_selinux_permissive(Pihole):
-    '''
-    confirms installer continues when SELinux is Permissive
-    '''
-    mock_selinux_config("permissive", Pihole)
-    check_selinux = Pihole.run('''
-    source /opt/pihole/basic-install.sh
-    checkSelinux
-    ''')
-    expected_stdout = tick_box + ' Current SELinux: Permissive'
-    assert expected_stdout in check_selinux.stdout
-    assert check_selinux.rc == 0
-
-
-@pytest.mark.parametrize("tag", [('centos_7'), ('centos_8'), ('fedora_31'), ('fedora_32'), ])
-def test_selinux_disabled(Pihole):
-    '''
-    confirms installer continues when SELinux is Disabled
-    '''
-    mock_selinux_config("disabled", Pihole)
-    check_selinux = Pihole.run('''
-    source /opt/pihole/basic-install.sh
-    checkSelinux
-    ''')
-    expected_stdout = tick_box + ' Current SELinux: Disabled'
-    assert expected_stdout in check_selinux.stdout
-    assert check_selinux.rc == 0
-
-
-@pytest.mark.parametrize("tag", [('fedora_31'), ('fedora_32'), ])
-def test_epel_and_remi_not_installed_fedora(Pihole):
-    '''
-    confirms installer does not attempt to install EPEL/REMI repositories
-    on Fedora
-    '''
-    distro_check = Pihole.run('''
-    source /opt/pihole/basic-install.sh
-    distro_check
-    ''')
-    assert distro_check.stdout == ''
-
-    epel_package = Pihole.package('epel-release')
-    assert not epel_package.is_installed
-    remi_package = Pihole.package('remi-release')
-    assert not remi_package.is_installed
-
-
-@pytest.mark.parametrize("tag", [('centos_7'), ('centos_8'), ])
-def test_release_supported_version_check_centos(Pihole):
-    '''
-    confirms installer exits on unsupported releases of CentOS
-    '''
-    # modify /etc/redhat-release to mock an unsupported CentOS release
-    Pihole.run('echo "CentOS Linux release 6.9" > /etc/redhat-release')
-    distro_check = Pihole.run('''
-    source /opt/pihole/basic-install.sh
-    distro_check
-    ''')
-    expected_stdout = cross_box + (' CentOS 6 is not supported.')
-    assert expected_stdout in distro_check.stdout
-    expected_stdout = 'Please update to CentOS release 7 or later'
-    assert expected_stdout in distro_check.stdout
-
-
-@pytest.mark.parametrize("tag", [('centos_7'), ('centos_8'), ])
-def test_enable_epel_repository_centos(Pihole):
-    '''
-    confirms the EPEL package repository is enabled when installed on CentOS
-    '''
-    distro_check = Pihole.run('''
-    source /opt/pihole/basic-install.sh
-    distro_check
-    ''')
-    expected_stdout = info_box + (' Enabling EPEL package repository '
-                                  '(https://fedoraproject.org/wiki/EPEL)')
-    assert expected_stdout in distro_check.stdout
-    expected_stdout = tick_box + ' Installed epel-release'
-    assert expected_stdout in distro_check.stdout
-    epel_package = Pihole.package('epel-release')
-    assert epel_package.is_installed
-
-
-@pytest.mark.parametrize("tag", [('centos_7'), ])
-def test_php_upgrade_default_optout_centos_eq_7(Pihole):
-    '''
-    confirms the default behavior to opt-out of installing PHP7 from REMI
-    '''
-    distro_check = Pihole.run('''
-    source /opt/pihole/basic-install.sh
-    distro_check
-    ''')
-    expected_stdout = info_box + (' User opt-out of PHP 7 upgrade on CentOS. '
-                                  'Deprecated PHP may be in use.')
-    assert expected_stdout in distro_check.stdout
-    remi_package = Pihole.package('remi-release')
-    assert not remi_package.is_installed
-
-
-@pytest.mark.parametrize("tag", [('centos_8'), ])
-def test_php_upgrade_default_continue_centos_gte_8(Pihole):
-    '''
-    confirms the latest version of CentOS continues / does not optout
-    (should trigger on CentOS7 only)
-    '''
-    distro_check = Pihole.run('''
-    source /opt/pihole/basic-install.sh
-    distro_check
-    ''')
-    unexpected_stdout = info_box + (' User opt-out of PHP 7 upgrade on CentOS.'
-                                    ' Deprecated PHP may be in use.')
-    assert unexpected_stdout not in distro_check.stdout
-    # ensure remi was not installed on latest CentOS
-    remi_package = Pihole.package('remi-release')
-    assert not remi_package.is_installed
-
-
-@pytest.mark.parametrize("tag", [('centos_7'), ])
-def test_php_upgrade_user_optout_centos_eq_7(Pihole):
-    '''
-    confirms installer behavior when user opt-out of installing PHP7 from REMI
-    (php not currently installed)
-    '''
-    # Whiptail dialog returns Cancel for user prompt
-    mock_command('whiptail', {'*': ('', '1')}, Pihole)
-    distro_check = Pihole.run('''
-    source /opt/pihole/basic-install.sh
-    distro_check
-    ''')
-    expected_stdout = info_box + (' User opt-out of PHP 7 upgrade on CentOS. '
-                                  'Deprecated PHP may be in use.')
-    assert expected_stdout in distro_check.stdout
-    remi_package = Pihole.package('remi-release')
-    assert not remi_package.is_installed
-
-
-@pytest.mark.parametrize("tag", [('centos_8'), ])
-def test_php_upgrade_user_optout_skipped_centos_gte_8(Pihole):
-    '''
-    confirms installer skips user opt-out of installing PHP7 from REMI on
-    latest CentOS (should trigger on CentOS7 only)
-    (php not currently installed)
-    '''
-    # Whiptail dialog returns Cancel for user prompt
-    mock_command('whiptail', {'*': ('', '1')}, Pihole)
-    distro_check = Pihole.run('''
-    source /opt/pihole/basic-install.sh
-    distro_check
-    ''')
-    unexpected_stdout = info_box + (' User opt-out of PHP 7 upgrade on CentOS.'
-                                    ' Deprecated PHP may be in use.')
-    assert unexpected_stdout not in distro_check.stdout
-    # ensure remi was not installed on latest CentOS
-    remi_package = Pihole.package('remi-release')
-    assert not remi_package.is_installed
-
-
-@pytest.mark.parametrize("tag", [('centos_7'), ])
-def test_php_upgrade_user_optin_centos_eq_7(Pihole):
-    '''
-    confirms installer behavior when user opt-in to installing PHP7 from REMI
-    (php not currently installed)
-    '''
-    # Whiptail dialog returns Continue for user prompt
-    mock_command('whiptail', {'*': ('', '0')}, Pihole)
-    distro_check = Pihole.run('''
-    source /opt/pihole/basic-install.sh
-    distro_check
-    ''')
-    assert 'opt-out' not in distro_check.stdout
-    expected_stdout = info_box + (' Enabling Remi\'s RPM repository '
-                                  '(https://rpms.remirepo.net)')
-    assert expected_stdout in distro_check.stdout
-    expected_stdout = tick_box + (' Remi\'s RPM repository has '
-                                  'been enabled for PHP7')
-    assert expected_stdout in distro_check.stdout
-    remi_package = Pihole.package('remi-release')
-    assert remi_package.is_installed
-
-
-@pytest.mark.parametrize("tag", [('centos_8'), ])
-def test_php_upgrade_user_optin_skipped_centos_gte_8(Pihole):
-    '''
-    confirms installer skips user opt-in to installing PHP7 from REMI on
-    latest CentOS (should trigger on CentOS7 only)
-    (php not currently installed)
-    '''
-    # Whiptail dialog returns Continue for user prompt
-    mock_command('whiptail', {'*': ('', '0')}, Pihole)
-    distro_check = Pihole.run('''
-    source /opt/pihole/basic-install.sh
-    distro_check
-    ''')
-    assert 'opt-out' not in distro_check.stdout
-    unexpected_stdout = info_box + (' Enabling Remi\'s RPM repository '
-                                    '(https://rpms.remirepo.net)')
-    assert unexpected_stdout not in distro_check.stdout
-    unexpected_stdout = tick_box + (' Remi\'s RPM repository has '
-                                    'been enabled for PHP7')
-    assert unexpected_stdout not in distro_check.stdout
-    remi_package = Pihole.package('remi-release')
-    assert not remi_package.is_installed
-
-
-@pytest.mark.parametrize("tag", [('centos_7'), ('centos_8'), ])
-def test_php_version_lt_7_detected_upgrade_default_optout_centos(Pihole):
-    '''
-    confirms the default behavior to opt-out of upgrading to PHP7 from REMI
-    '''
-    # first we will install the default php version to test installer behavior
-    php_install = Pihole.run('yum install -y php')
-    assert php_install.rc == 0
-    php_package = Pihole.package('php')
-    default_centos_php_version = php_package.version.split('.')[0]
-    if int(default_centos_php_version) >= 7:  # PHP7 is supported/recommended
-        pytest.skip("Test deprecated . Detected default PHP version >= 7")
-    distro_check = Pihole.run('''
-    source /opt/pihole/basic-install.sh
-    distro_check
-    ''')
-    expected_stdout = info_box + (' User opt-out of PHP 7 upgrade on CentOS. '
-                                  'Deprecated PHP may be in use.')
-    assert expected_stdout in distro_check.stdout
-    remi_package = Pihole.package('remi-release')
-    assert not remi_package.is_installed
-
-
-@pytest.mark.parametrize("tag", [('centos_7'), ('centos_8'), ])
-def test_php_version_lt_7_detected_upgrade_user_optout_centos(Pihole):
-    '''
-    confirms installer behavior when user opt-out to upgrade to PHP7 via REMI
-    '''
-    # first we will install the default php version to test installer behavior
-    php_install = Pihole.run('yum install -y php')
-    assert php_install.rc == 0
-    php_package = Pihole.package('php')
-    default_centos_php_version = php_package.version.split('.')[0]
-    if int(default_centos_php_version) >= 7:  # PHP7 is supported/recommended
-        pytest.skip("Test deprecated . Detected default PHP version >= 7")
-    # Whiptail dialog returns Cancel for user prompt
-    mock_command('whiptail', {'*': ('', '1')}, Pihole)
-    distro_check = Pihole.run('''
-    source /opt/pihole/basic-install.sh
-    distro_check
-    ''')
-    expected_stdout = info_box + (' User opt-out of PHP 7 upgrade on CentOS. '
-                                  'Deprecated PHP may be in use.')
-    assert expected_stdout in distro_check.stdout
-    remi_package = Pihole.package('remi-release')
-    assert not remi_package.is_installed
-
-
-@pytest.mark.parametrize("tag", [('centos_7'), ('centos_8'), ])
-def test_php_version_lt_7_detected_upgrade_user_optin_centos(Pihole):
-    '''
-    confirms installer behavior when user opt-in to upgrade to PHP7 via REMI
-    '''
-    # first we will install the default php version to test installer behavior
-    php_install = Pihole.run('yum install -y php')
-    assert php_install.rc == 0
-    php_package = Pihole.package('php')
-    default_centos_php_version = php_package.version.split('.')[0]
-    if int(default_centos_php_version) >= 7:  # PHP7 is supported/recommended
-        pytest.skip("Test deprecated . Detected default PHP version >= 7")
-    # Whiptail dialog returns Continue for user prompt
-    mock_command('whiptail', {'*': ('', '0')}, Pihole)
-    distro_check = Pihole.run('''
-    source /opt/pihole/basic-install.sh
-    distro_check
-    install_dependent_packages PIHOLE_WEB_DEPS[@]
-    ''')
-    expected_stdout = info_box + (' User opt-out of PHP 7 upgrade on CentOS. '
-                                  'Deprecated PHP may be in use.')
-    assert expected_stdout not in distro_check.stdout
-    expected_stdout = info_box + (' Enabling Remi\'s RPM repository '
-                                  '(https://rpms.remirepo.net)')
-    assert expected_stdout in distro_check.stdout
-    expected_stdout = tick_box + (' Remi\'s RPM repository has '
-                                  'been enabled for PHP7')
-    assert expected_stdout in distro_check.stdout
-    remi_package = Pihole.package('remi-release')
-    assert remi_package.is_installed
-    updated_php_package = Pihole.package('php')
-    updated_php_version = updated_php_package.version.split('.')[0]
-    assert int(updated_php_version) == 7
diff --git a/test/test_fedora_support.py b/test/test_fedora_support.py
new file mode 100644
index 00000000..473b2e96
--- /dev/null
+++ b/test/test_fedora_support.py
@@ -0,0 +1,15 @@
+def test_epel_and_remi_not_installed_fedora(Pihole):
+    '''
+    confirms installer does not attempt to install EPEL/REMI repositories
+    on Fedora
+    '''
+    distro_check = Pihole.run('''
+    source /opt/pihole/basic-install.sh
+    distro_check
+    ''')
+    assert distro_check.stdout == ''
+
+    epel_package = Pihole.package('epel-release')
+    assert not epel_package.is_installed
+    remi_package = Pihole.package('remi-release')
+    assert not remi_package.is_installed
diff --git a/test/test_shellcheck.py b/test/test_shellcheck.py
deleted file mode 100644
index 919ad2b9..00000000
--- a/test/test_shellcheck.py
+++ /dev/null
@@ -1,18 +0,0 @@
-import testinfra
-
-run_local = testinfra.get_backend(
-    "local://"
-).get_module("Command").run
-
-
-def test_scripts_pass_shellcheck():
-    '''
-    Make sure shellcheck does not find anything wrong with our shell scripts
-    '''
-    shellcheck = ("find . -type f -name 'update.sh' "
-                  "| while read file; do "
-                  "shellcheck -x \"$file\" -e SC1090,SC1091; "
-                  "done;")
-    results = run_local(shellcheck)
-    print(results.stdout)
-    assert '' == results.stdout
diff --git a/test/tox.centos_7.ini b/test/tox.centos_7.ini
new file mode 100644
index 00000000..c2752698
--- /dev/null
+++ b/test/tox.centos_7.ini
@@ -0,0 +1,8 @@
+[tox]
+envlist = py37
+
+[testenv]
+whitelist_externals = docker
+deps = -rrequirements.txt
+commands = docker build -f _centos_7.Dockerfile -t pytest_pihole:test_container ../
+           pytest {posargs:-vv -n auto} ./test_automated_install.py ./test_centos_fedora_common_support.py ./test_centos_common_support.py ./test_centos_7_support.py
diff --git a/test/tox.centos_8.ini b/test/tox.centos_8.ini
new file mode 100644
index 00000000..c8852bae
--- /dev/null
+++ b/test/tox.centos_8.ini
@@ -0,0 +1,8 @@
+[tox]
+envlist = py37
+
+[testenv]
+whitelist_externals = docker
+deps = -rrequirements.txt
+commands = docker build -f _centos_8.Dockerfile -t pytest_pihole:test_container ../
+           pytest {posargs:-vv -n auto} ./test_automated_install.py ./test_centos_fedora_common_support.py ./test_centos_common_support.py ./test_centos_8_support.py
diff --git a/test/tox.debian_10.ini b/test/tox.debian_10.ini
new file mode 100644
index 00000000..e8c5d746
--- /dev/null
+++ b/test/tox.debian_10.ini
@@ -0,0 +1,8 @@
+[tox]
+envlist = py37
+
+[testenv]
+whitelist_externals = docker
+deps = -rrequirements.txt
+commands = docker build -f _debian_10.Dockerfile -t pytest_pihole:test_container ../
+           pytest {posargs:-vv -n auto} ./test_automated_install.py
diff --git a/test/tox.debian_9.ini b/test/tox.debian_9.ini
new file mode 100644
index 00000000..b33e9927
--- /dev/null
+++ b/test/tox.debian_9.ini
@@ -0,0 +1,8 @@
+[tox]
+envlist = py37
+
+[testenv]
+whitelist_externals = docker
+deps = -rrequirements.txt
+commands = docker build -f _debian_9.Dockerfile -t pytest_pihole:test_container ../
+           pytest {posargs:-vv -n auto} ./test_automated_install.py
diff --git a/test/tox.fedora_31.ini b/test/tox.fedora_31.ini
new file mode 100644
index 00000000..36ab10ad
--- /dev/null
+++ b/test/tox.fedora_31.ini
@@ -0,0 +1,8 @@
+[tox]
+envlist = py37
+
+[testenv]
+whitelist_externals = docker
+deps = -rrequirements.txt
+commands = docker build -f _fedora_31.Dockerfile -t pytest_pihole:test_container ../
+           pytest {posargs:-vv -n auto} ./test_automated_install.py ./test_centos_fedora_common_support.py ./test_fedora_support.py
diff --git a/test/tox.fedora_32.ini b/test/tox.fedora_32.ini
new file mode 100644
index 00000000..c68e0757
--- /dev/null
+++ b/test/tox.fedora_32.ini
@@ -0,0 +1,8 @@
+[tox]
+envlist = py37
+
+[testenv]
+whitelist_externals = docker
+deps = -rrequirements.txt
+commands = docker build -f _fedora_32.Dockerfile -t pytest_pihole:test_container ../
+           pytest {posargs:-vv -n auto} ./test_automated_install.py ./test_centos_fedora_common_support.py ./test_fedora_support.py
diff --git a/test/tox.ubuntu_16.ini b/test/tox.ubuntu_16.ini
new file mode 100644
index 00000000..6f484b6b
--- /dev/null
+++ b/test/tox.ubuntu_16.ini
@@ -0,0 +1,8 @@
+[tox]
+envlist = py37
+
+[testenv]
+whitelist_externals = docker
+deps = -rrequirements.txt
+commands = docker build -f _ubuntu_16.Dockerfile -t pytest_pihole:test_container ../
+           pytest {posargs:-vv -n auto} ./test_automated_install.py
diff --git a/test/tox.ubuntu_18.ini b/test/tox.ubuntu_18.ini
new file mode 100644
index 00000000..10d4ac09
--- /dev/null
+++ b/test/tox.ubuntu_18.ini
@@ -0,0 +1,8 @@
+[tox]
+envlist = py37
+
+[testenv]
+whitelist_externals = docker
+deps = -rrequirements.txt
+commands = docker build -f _ubuntu_18.Dockerfile -t pytest_pihole:test_container ../
+           pytest {posargs:-vv -n auto} ./test_automated_install.py
diff --git a/test/tox.ubuntu_20.ini b/test/tox.ubuntu_20.ini
new file mode 100644
index 00000000..8b405b28
--- /dev/null
+++ b/test/tox.ubuntu_20.ini
@@ -0,0 +1,8 @@
+[tox]
+envlist = py37
+
+[testenv]
+whitelist_externals = docker
+deps = -rrequirements.txt
+commands = docker build -f _ubuntu_20.Dockerfile -t pytest_pihole:test_container ../
+           pytest {posargs:-vv -n auto} ./test_automated_install.py
diff --git a/tox.ini b/tox.ini
deleted file mode 100644
index 1142aea8..00000000
--- a/tox.ini
+++ /dev/null
@@ -1,16 +0,0 @@
-[tox]
-envlist = py37
-
-[testenv]
-whitelist_externals = docker
-deps = -rrequirements.txt
-commands = docker build -f test/debian_9.Dockerfile -t pytest_pihole:debian_9 .
-           docker build -f test/debian_10.Dockerfile -t pytest_pihole:debian_10 .
-           docker build -f test/centos_7.Dockerfile -t pytest_pihole:centos_7 .
-           docker build -f test/centos_8.Dockerfile -t pytest_pihole:centos_8 .           
-           docker build -f test/fedora_31.Dockerfile -t pytest_pihole:fedora_31 .
-           docker build -f test/fedora_32.Dockerfile -t pytest_pihole:fedora_32 .
-           docker build -f test/ubuntu_16.Dockerfile -t pytest_pihole:ubuntu_16 .
-           docker build -f test/ubuntu_18.Dockerfile -t pytest_pihole:ubuntu_18 .
-           docker build -f test/ubuntu_20.Dockerfile -t pytest_pihole:ubuntu_20 .
-           pytest {posargs:-vv -n auto} -m "not build_stage" ./test/