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https://github.com/balena-os/balena-supervisor.git
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v14.11.2
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parent
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- commits:
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- subject: Handle Engine-host race condition for "always" and "unless-stopped"
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restart policy
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hash: 7f3214195838a8bf3242ef7540b4487338687e4c
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body: >
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There exists a race condition between Engine and a host resource that
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may not
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be immediately created. In this race condition, if a container's compose config
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depends on the existence of that host resource, such as a network interface, and the
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Engine tries to create & start the container before the host resource is created, the
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Engine will not reattempt to start the container, regardless of the restart policy.
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This is undesireable behavior but seems to be the behavior as implemented by Docker.
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To rectify this, the Supervisor state funnel noops for a grace period of 1 minute
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after starting a container to see that the container's status has become 'running`.
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If the container exits because of the race condition, the status becomes 'exited' and the
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Supervisor will attempt to generate another start step. This noop-wait-start step loop
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will repeat until the container is able to start.
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If the container is never able to start, there was a problem in the host in the creation of the
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host resource, and that should be fixed at the host level.
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This commit does not handle the case of services with restart policies "no" or "on-failure"
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which encounter this host race, as metadata from container inspects needs to be introduced
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during step calculation in order to figure out whether services with those restart policies
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need to be started. This will be fixed in a future PR.
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footer:
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Change-type: patch
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change-type: patch
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Signed-off-by: Christina Ying Wang <christina@balena.io>
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signed-off-by: Christina Ying Wang <christina@balena.io>
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author: Christina Ying Wang
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nested: []
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version: 14.11.2
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title: ""
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date: 2023-06-05T18:53:18.287Z
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- commits:
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- subject: Fix `sw.arch` typo when testing contracts
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hash: 2758e190b28ea07d5b40daaa9e59434f2bfc28e9
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@ -4,6 +4,11 @@ All notable changes to this project will be documented in this file
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automatically by Versionist. DO NOT EDIT THIS FILE MANUALLY!
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This project adheres to [Semantic Versioning](http://semver.org/).
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# v14.11.2
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## (2023-06-05)
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* Handle Engine-host race condition for "always" and "unless-stopped" restart policy [Christina Ying Wang]
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# v14.11.1
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## (2023-05-11)
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@ -2,6 +2,6 @@ name: balena-supervisor
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description: 'Balena Supervisor: balena''s agent on devices.'
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joinable: false
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type: sw.application
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version: 14.11.1
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version: 14.11.2
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provides:
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- slug: sw.compose.long-volume-syntax
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4
package-lock.json
generated
4
package-lock.json
generated
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{
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"name": "balena-supervisor",
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"version": "14.11.1",
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"version": "14.11.2",
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"lockfileVersion": 2,
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"requires": true,
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"packages": {
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"": {
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"name": "balena-supervisor",
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"version": "14.11.1",
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"version": "14.11.2",
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"license": "Apache-2.0",
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"dependencies": {
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"@balena/happy-eyeballs": "0.0.6",
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@ -1,7 +1,7 @@
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{
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"name": "balena-supervisor",
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"description": "This is balena's Supervisor, a program that runs on IoT devices and has the task of running user Apps (which are Docker containers), and updating them as the balena API informs it to.",
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"version": "14.11.1",
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"version": "14.11.2",
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"license": "Apache-2.0",
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"repository": {
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"type": "git",
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@ -146,6 +146,6 @@
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}
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},
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"versionist": {
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"publishedAt": "2023-05-11T22:07:33.587Z"
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"publishedAt": "2023-06-05T18:53:18.956Z"
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}
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}
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