Adding support for azure static webapp

Signed-off-by: Sujay Pillai <sujayopillai@gmail.com>

stdlib/azure/staticwebapp/stapp.cue

@@ -0,0 +1,79 @@
+package staticwebapp
+
+import (
+	"alpha.dagger.io/azure"
+	"alpha.dagger.io/os"
+	"alpha.dagger.io/dagger"
+)
+
+// Create a static web app
+#StaticWebApp: {
+	// Azure Config
+	config: azure.#Config
+
+	// ResourceGroup name in which to create static webapp
+	rgName: string & dagger.#Input
+
+	// StaticWebApp location
+	stappLocation: string & dagger.#Input
+
+	// StaticWebApp name
+	stappName: string & dagger.#Input
+
+	// GitHubRepository URL 
+	remote: string & dagger.#Input
+
+	// GitHub Branch
+	ref: *"main" | string & dagger.#Input
+
+	// Location of your application code
+	appLocation: *"/" | string & dagger.#Input
+
+	// Location of your build artifacts
+	buildLocation: *"build" | string & dagger.#Input
+
+	// GitHub Personal Access Token
+	authToken: dagger.#Secret & dagger.#Input
+
+	// DefaultHostName generated by Azure
+	defaultHostName: string & dagger.#Output
+
+	// Container image
+	ctr: os.#Container & {
+		image: azure.#CLI & {
+			"config": config
+		}
+		always: true
+
+		command: #"""
+				az staticwebapp create -n "$AZURE_STATICWEBAPP_NAME" \
+										-g "$AZURE_DEFAULTS_GROUP" \
+										-l "$AZURE_DEFAULTS_LOCATION" \
+										-s "$GIT_URL" \
+										-b "$GIT_BRANCH" \
+										-t "$(cat /run/secrets/git_pat)" \
+										--app-location "$APP_LOCATION" \
+										--output-location "$BUILD_LOCATION" | jq -r '.defaultHostname' | tr -d "\n" > /defaultHostName
+			"""#
+
+		secret: "/run/secrets/git_pat": authToken
+
+		env: {
+			AZURE_DEFAULTS_GROUP:    rgName
+			AZURE_DEFAULTS_LOCATION: stappLocation
+			AZURE_STATICWEBAPP_NAME: stappName
+			GIT_URL:                 remote
+			GIT_BRANCH:              ref
+			APP_LOCATION:            appLocation
+			BUILD_LOCATION:          buildLocation
+		}
+	}
+
+	// DefaultHostName generated by Azure
+	defaultHostName: ({
+		os.#File & {
+			from: ctr
+			path: "/defaultHostName"
+		}
+	}).contents
+}