Merge pull request #131 from jaxxstorm/latest_version

Always pull latest version

README.md

@@ -63,5 +63,17 @@ Which Tailscale version to use can be set like this:
       version: 1.52.0
 ```
 
+If you'd like to specify the latest version, simply set the version as `latest`
+
+```yaml
+  - name: Tailscale
+    uses: tailscale/github-action@v2
+    with:
+      oauth-client-id: ${{ secrets.TS_OAUTH_CLIENT_ID }}
+      oauth-secret: ${{ secrets.TS_OAUTH_SECRET }}
+      tags: tag:ci
+      version: latest
+```
+
 You can find the latest Tailscale stable version number at
 https://pkgs.tailscale.com/stable/#static.

action.yml

@@ -21,7 +21,7 @@ inputs:
     description: 'Comma separated list of Tags to be applied to nodes. The OAuth client must have permission to apply these tags.'
     required: false
   version:
-    description: 'Tailscale version to use.'
+    description: 'Tailscale version to use. Specify `latest` to use the latest stable version.'
     required: true
     default: '1.72.1'
   sha256sum:
@@ -70,6 +70,10 @@ runs:
           VERSION: ${{ inputs.version }}
           SHA256SUM: ${{ inputs.sha256sum }}
         run: |
+          if [ "$VERSION" = "latest" ]; then
+            VERSION=$(curl -s "https://pkgs.tailscale.com/stable/?mode=json" | jq -r .Version)
+            echo "Latest Tailscale version: $VERSION"
+          fi
           if [ ${{ runner.arch }} = "ARM64" ]; then
             TS_ARCH="arm64"
           elif [ ${{ runner.arch }} = "ARM" ]; then