Make a test farm tests package (#8821)

Fixes https://github.com/certbot/certbot/issues/8781.

This PR makes our test farm tests into a normal package so it and its dependencies can be tracked and installed like our other packages.

Other noteworthy changes in this PR:

* Rather than continuing to place logs in your CWD, they're placed in a temporary directory that is printed to the terminal.
*  `tests/letstest/auto_targets.yaml` was deleted rather than renamed because the file is no longer used.

* make a letstest package

* remove deleted deps

* fix letstest install

* add __init__.py

* call main

* Explicitly mention activating venv

* rerename file

* fix version.py path

* clarify "this"

* Use >= instead of caret requirement

1 files changed, 10 insertions, 6 deletions

diff --git a/tox.ini b/tox.ini
index f7db07b52..a45766d87 100644
--- a/tox.ini
+++ b/tox.ini
@@ -277,22 +277,26 @@ passenv = DOCKER_*
 setenv = {[testenv:oldest]setenv}
 
 [testenv:test-farm-tests-base]
-changedir = tests/letstest
-deps = -rtests/letstest/requirements.txt
+changedir = letstest
+# The package to install is in the current working directory because of the
+# value of changedir.
+commands = {[base]pip_install} .
 passenv =
     AWS_*
 setenv = AWS_DEFAULT_REGION=us-east-1
 
 [testenv:test-farm-apache2]
 changedir = {[testenv:test-farm-tests-base]changedir}
-commands = {toxinidir}/tools/retry.sh python multitester.py apache2_targets.yaml {env:AWS_EC2_PEM_FILE} SET_BY_ENV scripts/test_apache2.sh --repo {toxinidir}
-deps = {[testenv:test-farm-tests-base]deps}
+commands =
+    {[testenv:test-farm-tests-base]commands}
+    {toxinidir}/tools/retry.sh letstest targets/apache2_targets.yaml {env:AWS_EC2_PEM_FILE} SET_BY_ENV scripts/test_apache2.sh --repo {toxinidir}
 passenv = {[testenv:test-farm-tests-base]passenv}
 setenv = {[testenv:test-farm-tests-base]setenv}
 
 [testenv:test-farm-sdists]
 changedir = {[testenv:test-farm-tests-base]changedir}
-commands = {toxinidir}/tools/retry.sh python multitester.py targets.yaml {env:AWS_EC2_PEM_FILE} SET_BY_ENV scripts/test_sdists.sh --repo {toxinidir}
-deps = {[testenv:test-farm-tests-base]deps}
+commands =
+    {[testenv:test-farm-tests-base]commands}
+    {toxinidir}/tools/retry.sh letstest targets/targets.yaml {env:AWS_EC2_PEM_FILE} SET_BY_ENV scripts/test_sdists.sh --repo {toxinidir}
 passenv = {[testenv:test-farm-tests-base]passenv}
 setenv = {[testenv:test-farm-tests-base]setenv}