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Derive the webapp host container id from stable data (#865)
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Browse Source 
Reviewed-on: #865
Co-authored-by: David Boreham <david@bozemanpass.com>
Co-committed-by: David Boreham <david@bozemanpass.com>
This commit is contained in:
David Boreham 2024-07-04 22:38:07 +00:00 committed by David Boreham
parent ca5fffaed5
commit c3a1402042
1 changed files with 9 additions and 4 deletions
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13
stack_orchestrator/deploy/webapp/deploy_webapp_from_registry.py
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@ -99,24 +99,29 @@ def process_app_deployment_request(
deployment_record = laconic.get_record(app_deployment_crn)
deployment_dir = os.path.join(deployment_parent_dir, fqdn)
# At present we use this to generate a unique but stable ID for the app's host container
# TODO: implement support to derive this transparently from the already-unique deployment id
unique_deployment_id = hashlib.md5(fqdn.encode()).hexdigest()[:16]
deployment_config_file = os.path.join(deployment_dir, "config.env")
# TODO: Is there any reason not to simplify the hash input to the app_deployment_crn?
deployment_container_tag = "laconic-webapp/%s:local" % hashlib.md5(deployment_dir.encode()).hexdigest()
deployment_container_tag = "laconic-webapp/%s:local" % unique_deployment_id
app_image_shared_tag = f"laconic-webapp/{app.id}:local"
# b. check for deployment directory (create if necessary)
if not os.path.exists(deployment_dir):
if deployment_record:
raise Exception("Deployment record %s exists, but not deployment dir %s. Please remove name." %
(app_deployment_crn, deployment_dir))
print("deploy_webapp", deployment_dir)
logger.log(f"Creating webapp deployment in: {deployment_dir} with container id: {deployment_container_tag}")
deploy_webapp.create_deployment(ctx, deployment_dir, deployment_container_tag,
f"https://{fqdn}", kube_config, image_registry, env_filename)
elif env_filename:
shutil.copyfile(env_filename, deployment_config_file)
needs_k8s_deploy = False
if force_rebuild:
logger.log("--force-rebuild is enabled so the container will always be built now, even if nothing has changed in the app")
# 6. build container (if needed)
if not deployment_record or deployment_record.attributes.application != app.id:
# TODO: add a comment that explains what this code is doing (not clear to me)
if not deployment_record or deployment_record.attributes.application != app.id or force_rebuild:
needs_k8s_deploy = True
# check if the image already exists
shared_tag_exists = remote_image_exists(image_registry, app_image_shared_tag)