chore: redo container publishing, port dev-container to bazel

hack/publish.bzl

@@ -0,0 +1,17 @@
+load("@io_bazel_rules_docker//container:container.bzl", "container_push")
+
+def publish(
+    service, 
+    name = "+publish", 
+    image = ":image",
+    prefix = "roleypoly/roleypoly/",
+    registry = "docker.pkg.github.com",
+):
+    container_push(
+        name = name,
+        format = "Docker",
+        image = image,
+        registry = registry,
+        repository = prefix + service,
+        tag = "{STABLE_URL_SAFE_TAG}",
+    )

hack/workspace_status.sh

@@ -1,4 +1,5 @@
 #!/bin/bash
 echo "STABLE_GIT_COMMIT $(git rev-parse --short HEAD)"
 echo "STABLE_GIT_BRANCH $(git rev-parse --abbrev-ref HEAD)"
+echo "STABLE_URL_SAFE_TAG $(git rev-parse --abbrev-ref HEAD | tr '/' '-')"
 echo "BUILD_DATE $(date -Iseconds)"