ci: Add pushing to cloudsmith (#3941)

* ci: Add pushing to cloudsmith

* ci: Update comments, remove env TODO

* ci: Fix Cloudsmith installation by setting PATH

* docs: Add Cloudsmith attribution to README

* ci: Switch to keeping armv7 as the armhf .deb

2 files changed, 60 insertions, 1 deletions

diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index a51a35d..c09f237 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -41,6 +41,9 @@ jobs:
         echo "::set-output name=short_sha::$(git rev-parse --short HEAD)"
         echo "::set-output name=go_cache::$(go env GOCACHE)"
 
+        # Add "pip install" CLI tools to PATH
+        echo ~/.local/bin >> $GITHUB_PATH
+
         # Parse semver
         TAG=${GITHUB_REF/refs\/tags\//}
         SEMVER_RE='[^0-9]*\([0-9]*\)[.]\([0-9]*\)[.]\([0-9]*\)\([0-9A-Za-z\.-]*\)'
@@ -53,6 +56,11 @@ jobs:
         echo "::set-output name=tag_patch::${TAG_PATCH}"
         echo "::set-output name=tag_special::${TAG_SPECIAL}"
 
+    # Cloudsmith CLI tooling for pushing releases
+    # See https://help.cloudsmith.io/docs/cli
+    - name: Install Cloudsmith CLI
+      run: pip install --upgrade cloudsmith-cli
+
     - name: Validate commits and tag signatures
       run: |
         
@@ -82,12 +90,59 @@ jobs:
         TAG: ${{ steps.vars.outputs.version_tag }}
 
     # Only publish on non-special tags (e.g. non-beta)
+    # We will continue to push to Gemfury for the forseeable future, although
+    # Cloudsmith is probably better, to not break things for existing users of Gemfury.
+    # See https://gemfury.com/caddy/deb:caddy
     - name: Publish .deb to Gemfury
       if: ${{ steps.vars.outputs.tag_special == '' }}
       env:
         GEMFURY_PUSH_TOKEN: ${{ secrets.GEMFURY_PUSH_TOKEN }}
       run: |
         for filename in dist/*.deb; do
+          # armv6 and armv7 are both "armhf" so we can skip the duplicate
+          if [[ "$filename" == *"armv6"* ]]; then
+            echo "Skipping $filename"
+            continue
+          fi
+
           curl -F package=@"$filename" https://${GEMFURY_PUSH_TOKEN}:@push.fury.io/caddy/
         done
 
+    # Publish only special tags (unstable/beta/rc) to the "testing" repo
+    # See https://cloudsmith.io/~caddy/repos/testing/
+    - name: Publish .deb to Cloudsmith (special tags)
+      if: ${{ steps.vars.outputs.tag_special != '' }}
+      env:
+        CLOUDSMITH_API_KEY: ${{ secrets.CLOUDSMITH_API_KEY }}
+      run: |
+        for filename in dist/*.deb; do
+          # armv6 and armv7 are both "armhf" so we can skip the duplicate
+          if [[ "$filename" == *"armv6"* ]]; then
+            echo "Skipping $filename"
+            continue
+          fi
+
+          echo "Pushing $filename to 'testing'"
+          cloudsmith push deb caddy/testing/any-distro/any-version $filename
+        done
+
+    # Publish stable tags to Cloudsmith to both repos, "stable" and "testing"
+    # See https://cloudsmith.io/~caddy/repos/stable/
+    - name: Publish .deb to Cloudsmith (stable tags)
+      if: ${{ steps.vars.outputs.tag_special == '' }}
+      env:
+        CLOUDSMITH_API_KEY: ${{ secrets.CLOUDSMITH_API_KEY }}
+      run: |
+        for filename in dist/*.deb; do
+          # armv6 and armv7 are both "armhf" so we can skip the duplicate
+          if [[ "$filename" == *"armv6"* ]]; then
+            echo "Skipping $filename"
+            continue
+          fi
+
+          echo "Pushing $filename to 'stable'"
+          cloudsmith push deb caddy/stable/any-distro/any-version $filename
+
+          echo "Pushing $filename to 'testing'"
+          cloudsmith push deb caddy/testing/any-distro/any-version $filename
+        done
diff --git a/README.md b/README.md
index 9075365..316a56a 100644
--- a/README.md
+++ b/README.md
@@ -12,7 +12,9 @@
 	<br>
 	<a href="https://twitter.com/caddyserver" title="@caddyserver on Twitter"><img src="https://img.shields.io/badge/twitter-@caddyserver-55acee.svg" alt="@caddyserver on Twitter"></a>
 	<a href="https://caddy.community" title="Caddy Forum"><img src="https://img.shields.io/badge/community-forum-ff69b4.svg" alt="Caddy Forum"></a>
+	<br>
 	<a href="https://sourcegraph.com/github.com/caddyserver/caddy?badge" title="Caddy on Sourcegraph"><img src="https://sourcegraph.com/github.com/caddyserver/caddy/-/badge.svg" alt="Caddy on Sourcegraph"></a>
+	<a href="https://cloudsmith.io/~caddy/repos/"><img src="https://img.shields.io/badge/OSS%20hosting%20by-cloudsmith-blue?logo=cloudsmith" alt="Cloudsmith"></a>
 </p>
 <p align="center">
 	<a href="https://github.com/caddyserver/caddy/releases">Releases</a> ·
@@ -187,4 +189,6 @@ Please use our [issue tracker](https://github.com/caddyserver/caddy/issues) only
 - _Project on Twitter: [@caddyserver](https://twitter.com/caddyserver)_
 - _Author on Twitter: [@mholt6](https://twitter.com/mholt6)_
 
-Caddy is a project of [ZeroSSL](https://zerossl.com), an [apilayer](https://apilayer.com) company.
\ No newline at end of file
+Caddy is a project of [ZeroSSL](https://zerossl.com), an [apilayer](https://apilayer.com) company.
+
+Debian package repository hosting is graciously provided by [Cloudsmith](https://cloudsmith.com). Cloudsmith is the only fully hosted, cloud-native, universal package management solution, that enables your organization to create, store and share packages in any format, to any place, with total confidence.
\ No newline at end of file