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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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22
test/commander_test.rb
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@@ -104,28 +104,6 @@ class CommanderTest < ActiveSupport::TestCase
assert_equal [ "web", "workers" ], @kamal.roles_on("1.1.1.1").map(&:name)
end
test "default group strategy" do
assert_empty @kamal.boot_strategy
end
test "specific limit group strategy" do
configure_with(:deploy_with_boot_strategy)
assert_equal({ in: :groups, limit: 3, wait: 2 }, @kamal.boot_strategy)
end
test "percentage-based group strategy" do
configure_with(:deploy_with_percentage_boot_strategy)
assert_equal({ in: :groups, limit: 1, wait: 2 }, @kamal.boot_strategy)
end
test "percentage-based group strategy limit is at least 1" do
configure_with(:deploy_with_low_percentage_boot_strategy)
assert_equal({ in: :groups, limit: 1, wait: 2 }, @kamal.boot_strategy)
end
test "try to match the primary role from a list of specific roles" do
configure_with(:deploy_primary_web_role_override)