subnets/vagrant: Adapt pergamon manifests

The goal is to allow puppet agent --test runs from within vagrant vms the same way our current deployment does. So starting the pergamon node and other nodes and let the communication through puppet agent work.

This is now possible with the adaptations from the Vagrantfile (already landed) and the following.

To sum up the following adapts the pergamon roles to:

• Add public pergamon's fqdn (so the ip resolves correctly to the vm node)
• vagrant: Configure puppetdb
• swh_sysadmin: Make letsencrypt profile optional for vagrant subnet (as we already have some self-signed and generated certificates there)
• Ensure the puppetdb configuration directory exists
• subnets/vagrant: Make puppet master autosign certificates

This also fixes a couple of papercuts put forwards since we created the node from scratch:

• Fix missing directory warning for the export_archive_counters.pp profile
• Add missing apache vhost directory creations (there are still some but that would be dealt with a bit later)

Related to T3325

Test Plan

Vagrant tests:

1. Start the puppet master node:

vagrant up --provision pergamon
vagrant provision pergamon  # [1]

2. Start other nodes (one for production, another for staging)

vagrant up logstash0
vagrant up staging-worker0

Then connet to the nodes and trigger puppet agent

# vagrant ssh logstash0
$ puppet agent --test

it works, the node updates according to the pergamon instance ^

octocatalog:

bin/octocatalog-diff --octocatalog-diff-args --no-truncate-details --to staging pergamon
Found host pergamon.softwareheritage.org
*******************************************
+ Exec[create /srv/softwareheritage/annex/webroot] =>
   parameters =>
      "command": "mkdir -p /srv/softwareheritage/annex/webroot"
      "creates": "/srv/softwareheritage/annex/webroot"
      "path": ["/bin", "/usr/bin", "/sbin", "/usr/sbin"]
*******************************************
+ Exec[create /srv/softwareheritage/bitbucket-archive/webroot] =>
   parameters =>
      "command": "mkdir -p /srv/softwareheritage/bitbucket-archive/webroot"
      "creates": "/srv/softwareheritage/bitbucket-archive/webroot"
      "path": ["/bin", "/usr/bin", "/sbin", "/usr/sbin"]
*******************************************
+ Exec[create /srv/softwareheritage/docs/webroot] =>
   parameters =>
      "command": "mkdir -p /srv/softwareheritage/docs/webroot"
      "creates": "/srv/softwareheritage/docs/webroot"
      "path": ["/bin", "/usr/bin", "/sbin", "/usr/sbin"]
*******************************************
+ File[/usr/local/share/swh-data] =>
   parameters =>
      "ensure": "directory"
      "group": "root"
      "mode": "0755"
      "owner": "root"
*******************************************
*** End octocatalog-diff on pergamon.softwareheritage.org

• [1] for some unknown reasons as of yet this needs a second provision run [1] so the puppetdb installs finalize correctly. We kept this out of scope as we time boxed it.

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Migrated from D5757 (view on Phabricator)