0efb5ccfff
To speed up deployments, we'll remove the healthcheck step. This adds some risk to deployments for non-web roles - if they don't have a Docker healthcheck configured then the only check we do is if the container is running. If there is a bad image we might see the container running before it exits and deploy it. Previously the healthcheck step would have avoided this by ensuring a web container could boot and serve traffic first. To mitigate this, we'll add a deployment barrier. Until one of the primary role containers passes its healthcheck, we'll keep the barrier up and avoid stopping the containers on the non-primary roles. It the primary role container fails its healthcheck, we'll close the barrier and shut down the new containers on the waiting roles. We also have a new integration test to check we correctly handle a a broken image. This highlighted that SSHKit's default runner will stop at the first error it encounters. We'll now have a custom runner that waits for all threads to finish allowing them to clean up.
40 lines
756 B
YAML
40 lines
756 B
YAML
service: app
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image: app
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servers:
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web:
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hosts:
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- vm1
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- vm2
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workers:
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hosts:
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- vm3
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cmd: sleep infinity
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asset_path: /usr/share/nginx/html/versions
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registry:
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server: registry:4443
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username: root
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password: root
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builder:
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multiarch: false
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args:
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COMMIT_SHA: <%= `git rev-parse HEAD` %>
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healthcheck:
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cmd: wget -qO- http://localhost > /dev/null || exit 1
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max_attempts: 3
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traefik:
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args:
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accesslog: true
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accesslog.format: json
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image: registry:4443/traefik:v2.10
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accessories:
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busybox:
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service: custom-busybox
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image: registry:4443/busybox:1.36.0
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cmd: sh -c 'echo "Starting busybox..."; trap exit term; while true; do sleep 1; done'
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roles:
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- web
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stop_wait_time: 1
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readiness_delay: 0
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