From 6c099c4ad0614c3f0a8119f35f838825fd146882 Mon Sep 17 00:00:00 2001
From: Jose Diaz-Gonzalez <email@josediazgonzalez.com>
Date: Thu, 16 Feb 2023 14:19:42 -0500
Subject: [PATCH] tests: lint the packer config in CI

---
 .github/workflows/lint.yml | 15 +++++++++++++++
 package.mk                 | 11 +++++++++++
 2 files changed, 26 insertions(+)

diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index e4ac33938..4d287b5d9 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -34,6 +34,21 @@ jobs:
           config: '.github/linters/.markdown-lint.yml'
           args: './README.md'
 
+  packer:
+    name: packer
+    runs-on: ubuntu-20.04
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+      - name: Setup packer
+        uses: hashicorp/setup-packer@main
+        with:
+          version: latest
+      - name: Run packer init
+        run: "make image/init/digitalocean"
+      - name: Run `packer validate`
+        run: "make image/validate/digitalocean"
+
   shellcheck:
     name: shellcheck
     runs-on: ubuntu-20.04
diff --git a/package.mk b/package.mk
index dbfa1eaac..dbd31493b 100644
--- a/package.mk
+++ b/package.mk
@@ -1,3 +1,7 @@
+ifndef PKR_VAR_dokku_version
+	PKR_VAR_dokku_version = $(shell grep Version debian/control | cut -d' ' -f2)
+endif
+
 /tmp/build-dokku/var/lib/dokku/GIT_REV:
 	mkdir -p /tmp/build-dokku
 	mkdir -p /tmp/build-dokku/usr/share/bash-completion/completions
@@ -31,3 +35,10 @@ ifdef DOKKU_GIT_REV
 else
 	git rev-parse HEAD > /tmp/build-dokku/var/lib/dokku/GIT_REV
 endif
+.PHONY: image/init/digitalocean
+image/init/digitalocean:
+	packer init contrib/images/digitalocean/packer.pkr.hcl
+
+.PHONY: image/validate/digitalocean
+image/validate/digitalocean:
+	packer validate -var 'dokku_version=${PKR_VAR_dokku_version}' contrib/images/digitalocean/packer.pkr.hcl