chore: adds support for GHCR

Author: jmgilman

blueprint.cue

@@ -23,5 +23,8 @@ ci: {
 			org:       "Catalyst"
 			satellite: "ci"
 		}
+		github: {
+			registry: "ghcr.io"
+		}
 	}
 }

blueprint/schema/_embed/schema.cue

@@ -46,6 +46,7 @@ package schema
 	// Earthly contains the configuration for the Earthly Cloud provider.
 	// +optional
 	earthly?: #ProviderEarthly @go(Earthly)
+	github:   #ProviderGithub  @go(Github)
 }
 
 // ProviderAWS contains the configuration for the AWS provider.
@@ -82,6 +83,17 @@ package schema
 	satellite?: null | string @go(Satellite,*string)
 }
 
+// ProviderGithub contains the configuration for the Github provider.
+#ProviderGithub: {
+	// Credentials contains the credentials to use for Github
+	//  +optional
+	Credentials?: #Secret
+
+	// Registry contains the Github registry to use.
+	// +optional
+	Registry?: null | string @go(,*string)
+}
+
 // Secret contains the secret provider and a list of mappings
 #Secret: {
 	// Path contains the path to the secret.

blueprint/schema/schema.go

@@ -52,6 +52,8 @@ type Providers struct {
 	// Earthly contains the configuration for the Earthly Cloud provider.
 	// +optional
 	Earthly ProviderEarthly `json:"earthly"`
+
+	Github ProviderGithub `json:"github"`
 }
 
 // ProviderAWS contains the configuration for the AWS provider.
@@ -88,6 +90,17 @@ type ProviderEarthly struct {
 	Satellite *string `json:"satellite"`
 }
 
+// ProviderGithub contains the configuration for the Github provider.
+type ProviderGithub struct {
+	// Credentials contains the credentials to use for Github
+	//  +optional
+	Credentials Secret
+
+	// Registry contains the Github registry to use.
+	// +optional
+	Registry *string
+}
+
 // Secret contains the secret provider and a list of mappings
 type Secret struct {
 	// Path contains the path to the secret.

blueprint/schema/schema_go_gen.cue

@@ -46,6 +46,7 @@ package schema
 	// Earthly contains the configuration for the Earthly Cloud provider.
 	// +optional
 	earthly?: #ProviderEarthly @go(Earthly)
+	github:   #ProviderGithub  @go(Github)
 }
 
 // ProviderAWS contains the configuration for the AWS provider.
@@ -82,6 +83,17 @@ package schema
 	satellite?: null | string @go(Satellite,*string)
 }
 
+// ProviderGithub contains the configuration for the Github provider.
+#ProviderGithub: {
+	// Credentials contains the credentials to use for Github
+	//  +optional
+	Credentials?: #Secret
+
+	// Registry contains the Github registry to use.
+	// +optional
+	Registry?: null | string @go(,*string)
+}
+
 // Secret contains the secret provider and a list of mappings
 #Secret: {
 	// Path contains the path to the secret.

forge/actions/setup/action.yml

@@ -7,6 +7,10 @@ inputs:
   forge_version:
     description: The version of the forge CLI to install (use 'local' for testing)
     default: latest
+  github_token:
+    description: Github token assigned to CI
+    required: false
+    default: ${{ github.token }}
 runs:
   using: composite
   steps:
@@ -92,6 +96,27 @@ runs:
         username: ${{ steps.docker.outputs.username }}
         password: ${{ steps.docker.outputs.password }}
 
+    # GitHub Provider
+    - name: Get GitHub provider configuration
+      id: github
+      shell: bash
+      run: |
+        BP=$(forge blueprint dump .)
+
+        GITHUB=$(echo "$BP" | jq -r .ci.providers.github.registry)
+        if [[ "$GITHUB" != "null" ]]; then
+          LOGIN=1
+        fi
+
+        echo "login=$LOGIN" >> $GITHUB_OUTPUT
+    - name: Login to GitHub Container Registry
+      uses: docker/login-action@v3
+      if: steps.github.outputs.login
+      with:
+        registry: ghcr.io
+        username: ${{ github.actor }}
+        password: ${{ inputs.github_token }}
+
     # Earthly Provider
     - name: Install Earthly
       uses: earthly/actions-setup@v1