fixing compute_url_map, add cleanup script

Compute_url_map was broken by #509: It also merged in #393, which
has an erroneous understanding that compute_url_map always returns
a diff (integration tests show it does not).

Adding a cleanup script to help with environment hygiene.

Added cleanup to CI to help make tests less flakey.

.github/workflows/ansible-integration-tests.yml

@@ -6,6 +6,9 @@ on:
   pull_request: {}
   push:
     branches: master
+env:
+  GCP_SERVICE_ACCOUNT: "github-ci@ansible-gcp-ci.iam.gserviceaccount.com"
+  GCP_PROJECT: "ansible-gcp-ci"
 jobs:
   integration:
     runs-on: ubuntu-latest
@@ -30,20 +33,31 @@ jobs:
         run: pip install -r requirements.txt
       - name: Install ansible-base (${{ matrix.ansible_version }})
         run: pip install https://github.com/ansible/ansible/archive/${{ matrix.ansible_version }}.tar.gz --disable-pip-version-check
+      # bootstrap integration env
       - name: Write integration-test configuration files
         env:
           CI_SERVICE_ACCOUNT_FILE_CONTENTS: ${{ secrets.CI_SERVICE_ACCOUNT_FILE_CONTENTS }}
         run: |
           echo "$CI_SERVICE_ACCOUNT_FILE_CONTENTS" > /tmp/service-account-key.json
           echo "[default]
-          gcp_project: ansible-gcp-ci
+          gcp_project: $GCP_PROJECT
           gcp_cred_file: /tmp/service-account-key.json
           gcp_cred_kind: serviceaccount
-          gcp_cred_email: github-ci@ansible-gcp-ci.iam.gserviceaccount.com
+          gcp_cred_email: $GCP_SERVICE_ACCOUNT
           " > ./tests/integration/cloud-config-gcp.ini
-      - name: test secrets
-        env: ${{ secrets }}
-        run: echo "$CI_SERVICE_ACCOUNT_FILE_CONTENTS"
+      # cleanup test environment
+      - name: Auth to Gcloud
+        uses: google-github-actions/auth@v1
+        env:
+          CI_SERVICE_ACCOUNT_FILE_CONTENTS: ${{ secrets.CI_SERVICE_ACCOUNT_FILE_CONTENTS }}
+        with:
+          service_account: "$GCP_SERVICE_ACCOUNT"
+          credentials_json: "${{ secrets.CI_SERVICE_ACCOUNT_FILE_CONTENTS }}"
+      - name: Set up Cloud SDK
+        uses: google-github-actions/setup-gcloud@v1
+      - name: Run cleanup
+        run:  ./scripts/cleanup-project.sh $GCP_PROJECT $GCP_SERVICE_ACCOUNT
+      # run tests
       - name: Run integration tests
         # Add the -vvv flag to print out more output
         run: ansible-test integration -v --color --python 3.8 --venv-system-site-packages

plugins/modules/gcp_compute_url_map.py

@@ -5489,6 +5489,7 @@ def main():
     if fetch:
         module.params['fingerprint'] = fetch['fingerprint']
         if state == 'present':
+          if is_different(module, fetch):
             update(module, self_link(module), kind)
             fetch = fetch_resource(module, self_link(module), kind)
             changed = True

scripts/cleanup-project.sh

@@ -0,0 +1,33 @@
+#!/usr/bin/env bash
+# cleanup-project cleans up an ansible testing project
+#
+# WARNING: do not run tests against a project while
+# this is running, or else your tests will fail.
+#
+# dependencies:
+#  - google-cloud-sdk (gcloudgcloud )
+set -e
+PROJECT_ID="${1}"
+SERVICE_ACCOUNT_NAME="${2}"
+ZONE="us-central1-a"
+
+main() {
+    # note: the ordering here is deliberate, to start with
+    # leaf resources and work upwards to parent resources.
+    cleanup_resource "compute instances" "--zone=$ZONE"
+    cleanup_resource "compute target-http-proxies" "--global"
+    cleanup_resource "compute forwarding-rules" "--global"
+    cleanup_resource "compute url-maps" "--global"
+    cleanup_resource "compute backend-services" "--global"
+}
+
+cleanup_resource() {
+    resource_group="$1"
+    extra_delete_args="$2"
+
+    for resource in $(gcloud $resource_group list --project="${PROJECT_ID}" --format="csv[no-heading](name)"); do
+        gcloud $resource_group delete "${resource}" --project="${PROJECT_ID}" -q $extra_delete_args
+    done
+}
+
+main