feat: GitHub Actions (#687)

* feat: GitHub Actions

* fix: templates styling

* fix: deployment environment urls

* fix: project name in README

* fix: Dockerfile bundle install and secrets

* fix: passing secret to docker build

* fix: add semicolons

* fix: secret casing

* fix: remove semicolon

* feat(Dockerfile): allow RAILS_MASTER_KEY to still be set as build arg

* chore(Dockerfile): final reformatting

* feat: get sourcemaps from image and upload to Sentry

* fix: set Sentry release in Rails

* fix: set Sentry release for js

* fix: single quote lint errors

* fix: use reusable workflows from this project instead

* fix: use whitespace character in regex

* revert: Banana -> AMBER

.github/issue_template.md

@@ -0,0 +1,13 @@
+### How to reproduce
+
+1. ...
+
+### Expected behaviour
+
+Explain what should happen.
+
+### Current behaviour
+
+Explain what currently happens.
+
+*Optionally add some screenshots*

.github/problem-matchers/eslint-stylish.json

@@ -0,0 +1,22 @@
+{
+  "problemMatcher": [
+    {
+      "owner": "eslint-stylish",
+      "pattern": [
+        {
+          "regexp": "^/opt/app/([^\\s].*)$",
+          "file": 1
+        },
+        {
+          "regexp": "^\\s+(\\d+):(\\d+)\\s+(error|warning|info)\\s+(.*)\\s\\s+(.*)$",
+          "line": 1,
+          "column": 2,
+          "severity": 3,
+          "message": 4,
+          "code": 5,
+          "loop": true
+        }
+      ]
+    }
+  ]
+}

.github/problem-matchers/rspec.json

@@ -0,0 +1,16 @@
+{
+  "problemMatcher": [
+    {
+      "owner": "rspec",
+      "severity": "error",
+      "pattern": [
+        {
+          "regexp": "^rspec\\s\\.\/(.*):(.*)\\s#\\s(.*)$",
+          "file": 1,
+          "line": 2,
+          "message": 3
+        }
+      ]
+    }
+  ]
+}

.github/problem-matchers/rubocop.json

@@ -0,0 +1,32 @@
+{
+  "problemMatcher": [
+    {
+      "owner": "rubocop-error",
+      "severity": "error",
+      "pattern": [
+        {
+          "regexp": "^(.+):(\\d+):(\\d+):\\sC:\\s((.+):\\s.+)$",
+          "file": 1,
+          "line": 2,
+          "column": 3,
+          "message": 4,
+          "code": 5
+        }
+      ]
+    },
+    {
+      "owner": "rubocop-warning",
+      "severity": "warning",
+      "pattern": [
+        {
+          "regexp": "^(.+):(\\d+):(\\d+):\\sW:\\s((.+):\\s.+)$",
+          "file": 1,
+          "line": 2,
+          "column": 3,
+          "message": 4,
+          "code": 5
+        }
+      ]
+    }
+  ]
+}

.github/pull_request_template.md

@@ -0,0 +1,12 @@
+### Checklist
+
+- [ ] Merged database migrations into 1 database migration.
+- [ ] Tested database migrations from `origin/staging` (`git checkout staging ; git pull ; bundle exec rails db:reset ; git checkout BRANCH ; bundle exec rails db:migrate`).
+
+### Summary
+
+Shortly summarize the changes in this pull request. Does it concern changes in the UI, add some screenshots. Are there related issues solved? Please, mention them (with 'fixes #xyz', see https://github.com/blog/1506-closing-issues-via-pull-requests), so they can be resolved automatically when merging this pull request.
+
+### Other information
+
+If there is some other relevant and important information for this pull request, mention it here. For example, related pull requests or newly introduced conventions, packages or other dependencies.

.github/workflows/cleanup-registry.yml

@@ -0,0 +1,24 @@
+name: Cleanup Registry
+
+on:
+  schedule:
+    - cron: '0 0 * * 1' # https://crontab.guru/#0_0_*_*_1
+  workflow_dispatch:
+
+env:
+  IMAGE_NAMES: sofia
+
+jobs:
+  cleanup:
+    name: Cleanup
+    runs-on: ubuntu-latest
+    steps:
+      - name: Delete old versions
+        uses: snok/container-retention-policy@81ba73785bb8207a451a0de928aa6a3c57d6fd77 # tag=v1.4.0
+        with:
+          image-names: ${{ env.IMAGE_NAMES }}
+          cut-off: 2 days ago UTC
+          account-type: org
+          org-name: ${{ github.repository_owner }}
+          skip-tags: latest,staging
+          token: ${{ secrets.PAT }}