Fix whitespace in many administration docs

Many code blocks are 4spaced, and they render in GitLab
without coloring as a result, even though they are
fenced with a language label. If in a list, other items
will render as being in a code block too, even if not
meant to. This fixes all these issues for many admin
docs (part 2)

7 files changed, 73 insertions, 73 deletions

diff --git a/doc/administration/monitoring/ip_whitelist.md b/doc/administration/monitoring/ip_whitelist.md
index ad2773de132..6bb2fe81b2c 100644
--- a/doc/administration/monitoring/ip_whitelist.md
+++ b/doc/administration/monitoring/ip_whitelist.md
@@ -12,9 +12,9 @@ hosts or use IP ranges:
 
 1. Open `/etc/gitlab/gitlab.rb` and add or uncomment the following:
 
-    ```ruby
-    gitlab_rails['monitoring_whitelist'] = ['127.0.0.0/8', '192.168.0.1']
-    ```
+   ```ruby
+   gitlab_rails['monitoring_whitelist'] = ['127.0.0.0/8', '192.168.0.1']
+   ```
 
 1. Save the file and [reconfigure] GitLab for the changes to take effect.
 
@@ -24,13 +24,13 @@ hosts or use IP ranges:
 
 1. Edit `config/gitlab.yml`:
 
-    ```yaml
-    monitoring:
-      # by default only local IPs are allowed to access monitoring resources
-      ip_whitelist:
-        - 127.0.0.0/8
-        - 192.168.0.1
-    ```
+   ```yaml
+   monitoring:
+     # by default only local IPs are allowed to access monitoring resources
+     ip_whitelist:
+       - 127.0.0.0/8
+       - 192.168.0.1
+   ```
 
 1. Save the file and [restart] GitLab for the changes to take effect.
 
diff --git a/doc/administration/monitoring/prometheus/gitlab_monitor_exporter.md b/doc/administration/monitoring/prometheus/gitlab_monitor_exporter.md
index f68b03d1ade..9aa4dfa5ab7 100644
--- a/doc/administration/monitoring/prometheus/gitlab_monitor_exporter.md
+++ b/doc/administration/monitoring/prometheus/gitlab_monitor_exporter.md
@@ -12,9 +12,9 @@ To enable the GitLab monitor exporter:
 1. Edit `/etc/gitlab/gitlab.rb`
 1. Add or find and uncomment the following line, making sure it's set to `true`:
 
-    ```ruby
-    gitlab_monitor['enable'] = true
-    ```
+   ```ruby
+   gitlab_monitor['enable'] = true
+   ```
 
 1. Save the file and [reconfigure GitLab][reconfigure] for the changes to
    take effect
diff --git a/doc/administration/monitoring/prometheus/index.md b/doc/administration/monitoring/prometheus/index.md
index ce65d77274b..341ea3330d7 100644
--- a/doc/administration/monitoring/prometheus/index.md
+++ b/doc/administration/monitoring/prometheus/index.md
@@ -39,9 +39,9 @@ To disable Prometheus and all of its exporters, as well as any added in the futu
 1. Edit `/etc/gitlab/gitlab.rb`
 1. Add or find and uncomment the following line, making sure it's set to `false`:
 
-    ```ruby
-    prometheus_monitoring['enable'] = false
-    ```
+   ```ruby
+   prometheus_monitoring['enable'] = false
+   ```
 
 1. Save the file and [reconfigure GitLab][reconfigure] for the changes to
    take effect.
@@ -61,19 +61,19 @@ To change the address/port that Prometheus listens on:
 1. Edit `/etc/gitlab/gitlab.rb`
 1. Add or find and uncomment the following line:
 
-    ```ruby
-    prometheus['listen_address'] = 'localhost:9090'
-    ```
+   ```ruby
+   prometheus['listen_address'] = 'localhost:9090'
+   ```
 
-    Replace `localhost:9090` with the address/port you want Prometheus to
-    listen on. If you would like to allow access to Prometheus to hosts other
-    than `localhost`, leave out the host, or use `0.0.0.0` to allow public access:
+   Replace `localhost:9090` with the address/port you want Prometheus to
+   listen on. If you would like to allow access to Prometheus to hosts other
+   than `localhost`, leave out the host, or use `0.0.0.0` to allow public access:
 
-    ```ruby
-    prometheus['listen_address'] = ':9090'
-    # or
-    prometheus['listen_address'] = '0.0.0.0:9090'
-    ```
+   ```ruby
+   prometheus['listen_address'] = ':9090'
+   # or
+   prometheus['listen_address'] = '0.0.0.0:9090'
+   ```
 
 1. Save the file and [reconfigure GitLab][reconfigure] for the changes to
    take effect
@@ -90,22 +90,22 @@ To use an external Prometheus server:
 1. Edit `/etc/gitlab/gitlab.rb`.
 1. Disable the bundled Prometheus:
 
-    ```ruby
-    prometheus['enable'] = false
-    ```
+   ```ruby
+   prometheus['enable'] = false
+   ```
 
 1. Set each bundled service's [exporter](#bundled-software-metrics) to listen on a network address, for example:
 
-    ```ruby
-     gitlab_monitor['listen_address'] = '0.0.0.0'
-     sidekiq['listen_address'] = '0.0.0.0'
-     gitlab_monitor['listen_port'] = '9168'
-     node_exporter['listen_address'] = '0.0.0.0:9100'
-     redis_exporter['listen_address'] = '0.0.0.0:9121'
-     postgres_exporter['listen_address'] = '0.0.0.0:9187'
-     gitaly['prometheus_listen_addr'] = "0.0.0.0:9236"
-     gitlab_workhorse['prometheus_listen_addr'] = "0.0.0.0:9229"
-     ```
+   ```ruby
+   gitlab_monitor['listen_address'] = '0.0.0.0'
+   sidekiq['listen_address'] = '0.0.0.0'
+   gitlab_monitor['listen_port'] = '9168'
+   node_exporter['listen_address'] = '0.0.0.0:9100'
+   redis_exporter['listen_address'] = '0.0.0.0:9121'
+   postgres_exporter['listen_address'] = '0.0.0.0:9187'
+   gitaly['prometheus_listen_addr'] = "0.0.0.0:9236"
+   gitlab_workhorse['prometheus_listen_addr'] = "0.0.0.0:9229"
+   ```
 
 1. Install and set up a dedicated Prometheus instance, if necessary, using the [official installation instructions](https://prometheus.io/docs/prometheus/latest/installation/).
 1. Add the Prometheus server IP address to the [monitoring IP whitelist](../ip_whitelist.html). For example:
@@ -117,14 +117,14 @@ To use an external Prometheus server:
 1. To scrape nginx metrics, you'll also need to configure nginx to allow the Prometheus server
    IP. For example:
 
-    ```ruby
-    nginx['status']['options'] = {
-          "server_tokens" => "off",
-          "access_log" => "off",
-          "allow" => "192.168.0.1",
-          "deny" => "all",
-    }
-    ```
+   ```ruby
+   nginx['status']['options'] = {
+         "server_tokens" => "off",
+         "access_log" => "off",
+         "allow" => "192.168.0.1",
+         "deny" => "all",
+   }
+   ```
 
 1. [Reconfigure GitLab][reconfigure] to apply the changes
 1. Edit the Prometheus server's configuration file.
@@ -132,17 +132,17 @@ To use an external Prometheus server:
    [scrape target configuration](https://prometheus.io/docs/prometheus/latest/configuration/configuration/#%3Cscrape_config%3E).
    For example, a sample snippet using `static_configs`:
 
-    ```yaml
-    scrape_configs:
-    - job_name: 'gitlab_exporters'
-      static_configs:
-      - targets: ['1.1.1.1:9168', '1.1.1.1:9236', '1.1.1.1:9236', '1.1.1.1:9100', '1.1.1.1:9121', '1.1.1.1:9187']
+   ```yaml
+   scrape_configs:
+   - job_name: 'gitlab_exporters'
+     static_configs:
+     - targets: ['1.1.1.1:9168', '1.1.1.1:9236', '1.1.1.1:9236', '1.1.1.1:9100', '1.1.1.1:9121', '1.1.1.1:9187']
 
-    - job_name: 'gitlab_metrics'
-      metrics_path: /-/metrics
-      static_configs:
-      - targets: ['1.1.1.1:443']
-    ```
+   - job_name: 'gitlab_metrics'
+     metrics_path: /-/metrics
+     static_configs:
+     - targets: ['1.1.1.1:443']
+   ```
 
 1. Restart the Prometheus server.
 
@@ -241,9 +241,9 @@ To disable the monitoring of Kubernetes:
 1. Edit `/etc/gitlab/gitlab.rb`.
 1. Add or find and uncomment the following line and set it to `false`:
 
-    ```ruby
-    prometheus['monitor_kubernetes'] = false
-    ```
+   ```ruby
+   prometheus['monitor_kubernetes'] = false
+   ```
 
 1. Save the file and [reconfigure GitLab][reconfigure] for the changes to
    take effect.
diff --git a/doc/administration/monitoring/prometheus/node_exporter.md b/doc/administration/monitoring/prometheus/node_exporter.md
index aef7758a88f..bcacfaa3be5 100644
--- a/doc/administration/monitoring/prometheus/node_exporter.md
+++ b/doc/administration/monitoring/prometheus/node_exporter.md
@@ -13,9 +13,9 @@ To enable the node exporter:
 1. Edit `/etc/gitlab/gitlab.rb`
 1. Add or find and uncomment the following line, making sure it's set to `true`:
 
-    ```ruby
-    node_exporter['enable'] = true
-    ```
+   ```ruby
+   node_exporter['enable'] = true
+   ```
 
 1. Save the file and [reconfigure GitLab][reconfigure] for the changes to
    take effect
diff --git a/doc/administration/monitoring/prometheus/pgbouncer_exporter.md b/doc/administration/monitoring/prometheus/pgbouncer_exporter.md
index d76834fdbea..6183594c69c 100644
--- a/doc/administration/monitoring/prometheus/pgbouncer_exporter.md
+++ b/doc/administration/monitoring/prometheus/pgbouncer_exporter.md
@@ -12,9 +12,9 @@ To enable the PgBouncer exporter:
 1. Edit `/etc/gitlab/gitlab.rb`
 1. Add or find and uncomment the following line, making sure it's set to `true`:
 
-    ```ruby
-    pgbouncer_exporter['enable'] = true
-    ```
+   ```ruby
+   pgbouncer_exporter['enable'] = true
+   ```
 
 1. Save the file and [reconfigure GitLab][reconfigure] for the changes to
    take effect.
diff --git a/doc/administration/monitoring/prometheus/postgres_exporter.md b/doc/administration/monitoring/prometheus/postgres_exporter.md
index 8e2d3162f88..3ad15b65497 100644
--- a/doc/administration/monitoring/prometheus/postgres_exporter.md
+++ b/doc/administration/monitoring/prometheus/postgres_exporter.md
@@ -12,9 +12,9 @@ To enable the postgres exporter:
 1. Edit `/etc/gitlab/gitlab.rb`
 1. Add or find and uncomment the following line, making sure it's set to `true`:
 
-    ```ruby
-    postgres_exporter['enable'] = true
-    ```
+   ```ruby
+   postgres_exporter['enable'] = true
+   ```
 
 1. Save the file and [reconfigure GitLab][reconfigure] for the changes to
    take effect
diff --git a/doc/administration/monitoring/prometheus/redis_exporter.md b/doc/administration/monitoring/prometheus/redis_exporter.md
index d54d409dbb6..1520115a38d 100644
--- a/doc/administration/monitoring/prometheus/redis_exporter.md
+++ b/doc/administration/monitoring/prometheus/redis_exporter.md
@@ -13,9 +13,9 @@ To enable the Redis exporter:
 1. Edit `/etc/gitlab/gitlab.rb`
 1. Add or find and uncomment the following line, making sure it's set to `true`:
 
-    ```ruby
-    redis_exporter['enable'] = true
-    ```
+   ```ruby
+   redis_exporter['enable'] = true
+   ```
 
 1. Save the file and [reconfigure GitLab][reconfigure] for the changes to
    take effect