stdlib: gcr support

Signed-off-by: Andrea Luzzardi <aluzzardi@gmail.com>

stdlib/gcp/gcr/gcr.cue

@@ -0,0 +1,44 @@
+package gcr
+
+import (
+	"dagger.io/dagger/op"
+	"dagger.io/gcp"
+)
+
+// Credentials retriever for GCR
+#Credentials: {
+	// GCP Config
+	config: gcp.#Config
+
+	// GCR credentials
+	username: "oauth2accesstoken"
+	secret: {
+		string
+
+		#up: [
+			op.#Load & {
+				from: gcp.#GCloud & {
+					"config": config
+				}
+			},
+			op.#Exec & {
+				always: true
+				args: [
+					"/bin/bash",
+					"--noprofile",
+					"--norc",
+					"-eo",
+					"pipefail",
+					"-c",
+					#"""
+						printf $(gcloud auth print-access-token) > /token.txt
+						"""#,
+				]
+			},
+
+			op.#Export & {
+				source: "/token.txt"
+			},
+		]
+	}
+}

tests/stdlib.bats

@@ -66,6 +66,12 @@ setup() {
     "$DAGGER" compute "$TESTDIR"/stdlib/gcp/gke --input-yaml "$TESTDIR"/stdlib/gcp/inputs.yaml
 }
 
+@test "stdlib: gcp: gcr" {
+    skip_unless_secrets_available "$TESTDIR"/stdlib/gcp/inputs.yaml
+
+    "$DAGGER" compute "$TESTDIR"/stdlib/gcp/gcr --input-yaml "$TESTDIR"/stdlib/gcp/inputs.yaml
+}
+
 @test "stdlib: docker-build" {
     "$DAGGER" compute "$TESTDIR"/stdlib/docker/build/ --input-dir source="$TESTDIR"/stdlib/docker/build
 }

tests/stdlib/gcp/gcr/gcr.cue

@@ -0,0 +1,96 @@
+package gcr
+
+import (
+	"dagger.io/gcp"
+	"dagger.io/gcp/gcr"
+	"dagger.io/alpine"
+	"dagger.io/dagger/op"
+)
+
+TestConfig: gcpConfig: gcp.#Config
+
+// Generate a random number
+random: {
+	string
+	#up: [
+		op.#Load & {from: alpine.#Image},
+		op.#Exec & {
+			args: ["sh", "-c", "cat /dev/urandom | tr -dc 'a-z' | fold -w 10 | head -n 1 | tr -d '\n' > /rand"]
+		},
+		op.#Export & {
+			source: "/rand"
+		},
+	]
+}
+
+TestGCR: {
+	repository: "gcr.io/dagger-ci/test"
+	tag:        "test-gcr-\(random)"
+
+	creds: gcr.#Credentials & {
+		config: TestConfig.gcpConfig
+	}
+
+	push: {
+		ref: "\(repository):\(tag)"
+
+		#up: [
+			op.#DockerBuild & {
+				dockerfile: """
+				FROM alpine
+				RUN echo \(random) > /test
+				"""
+			},
+
+			op.#DockerLogin & {
+				target:   repository
+				username: creds.username
+				secret:   creds.secret
+			},
+
+			op.#PushContainer & {
+				"ref": ref
+			},
+		]
+	}
+
+	pull: #up: [
+		op.#DockerLogin & {
+			target:   push.ref
+			username: creds.username
+			secret:   creds.secret
+		},
+
+		op.#FetchContainer & {
+			ref: push.ref
+		},
+	]
+
+	verify: #up: [
+		op.#Load & {
+			from: pull
+		},
+
+		op.#Exec & {
+			always: true
+			args: [
+				"sh", "-c", "test $(cat test) = \(random)",
+			]
+		},
+	]
+
+	verifyBuild: #up: [
+		op.#DockerLogin & {
+			target:   push.ref
+			username: creds.username
+			secret:   creds.secret
+		},
+
+		op.#DockerBuild & {
+			dockerfile: #"""
+				FROM \#(push.ref)
+				RUN test $(cat test) = \#(random)
+			"""#
+		},
+	]
+}