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Add pre and post app boot hooks

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Add two new hooks pre-app-boot and post-app-boot. They are analagous
to the pre/post proxy reboot hooks.

If the boot strategy deploys in groups, then the hooks are called once
per group of hosts and `KAMAL_HOSTS` contains a comma delimited list of
the hosts in that group.

If all hosts are deployed to at once, then they are called once with
`KAMAL_HOSTS` containing all the hosts.

It is possible to have pauses between groups of hosts in the boot config,
where this is the case the pause happens after the post-app-boot hook is
called.
This commit is contained in:
Donal McBreen
2025-02-03 14:14:39 +00:00
parent 09d020e9bb
commit cd73cea850
17 changed files with 116 additions and 99 deletions
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6
test/integration/main_test.rb
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@@ -8,19 +8,19 @@ class MainTest < IntegrationTest
kamal :deploy
assert_app_is_up version: first_version
assert_hooks_ran "pre-connect", "pre-build", "pre-deploy", "post-deploy"
assert_hooks_ran "pre-connect", "pre-build", "pre-deploy", "pre-app-boot", "post-app-boot", "post-deploy"
assert_envs version: first_version
second_version = update_app_rev
kamal :redeploy
assert_app_is_up version: second_version
assert_hooks_ran "pre-connect", "pre-build", "pre-deploy", "post-deploy"
assert_hooks_ran "pre-connect", "pre-build", "pre-deploy", "pre-app-boot", "post-app-boot", "post-deploy"
assert_accumulated_assets first_version, second_version
kamal :rollback, first_version
assert_hooks_ran "pre-connect", "pre-deploy", "post-deploy"
assert_hooks_ran "pre-connect", "pre-deploy", "pre-app-boot", "post-app-boot", "post-deploy"
assert_app_is_up version: first_version
details = kamal :details, capture: true