9c4747ec0c
[mproxy](https://github.com/kevinmcconnell/mproxy) is a custom minimal proxy designed specifically for Kamal. It has two big advantages over Traefik: 1. Imperative deployments - we tell it to switch from container A to container B, and it waits for container B to start then switches. No need to poll for health checks ourselves or mess around with forcing health checks to fail. 2. Support for multiple apps - as much as possible, configuration is supplied at runtime by the deploy command, allowing us to have multiple apps share an instance of mproxy without conflicting config.
114 lines
4.5 KiB
Ruby
114 lines
4.5 KiB
Ruby
require "test_helper"
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class CommandsHealthcheckTest < ActiveSupport::TestCase
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setup do
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@config = {
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service: "app", image: "dhh/app", registry: { "username" => "dhh", "password" => "secret" }, servers: [ "1.1.1.1" ]
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}
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end
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test "run" do
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assert_equal \
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"docker run --detach --name healthcheck-app-123 --publish 3999:3000 --label service=healthcheck-app -e KAMAL_CONTAINER_NAME=\"healthcheck-app\" --env-file .kamal/env/roles/app-web.env --health-cmd \"curl -f http://localhost:3000/up || exit 1\" --health-interval \"1s\" dhh/app:123",
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new_command.run.join(" ")
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end
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test "run with custom port" do
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@config[:healthcheck] = { "port" => 3001 }
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assert_equal \
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"docker run --detach --name healthcheck-app-123 --publish 3999:3001 --label service=healthcheck-app -e KAMAL_CONTAINER_NAME=\"healthcheck-app\" --env-file .kamal/env/roles/app-web.env --health-cmd \"curl -f http://localhost:3001/up || exit 1\" --health-interval \"1s\" dhh/app:123",
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new_command.run.join(" ")
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end
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test "run with destination" do
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@destination = "staging"
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assert_equal \
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"docker run --detach --name healthcheck-app-staging-123 --publish 3999:3000 --label service=healthcheck-app-staging -e KAMAL_CONTAINER_NAME=\"healthcheck-app-staging\" --env-file .kamal/env/roles/app-web-staging.env --health-cmd \"curl -f http://localhost:3000/up || exit 1\" --health-interval \"1s\" dhh/app:123",
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new_command.run.join(" ")
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end
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test "run with custom healthcheck" do
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@config[:healthcheck] = { "cmd" => "/bin/up" }
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assert_equal \
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"docker run --detach --name healthcheck-app-123 --publish 3999:3000 --label service=healthcheck-app -e KAMAL_CONTAINER_NAME=\"healthcheck-app\" --env-file .kamal/env/roles/app-web.env --health-cmd \"/bin/up\" --health-interval \"1s\" dhh/app:123",
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new_command.run.join(" ")
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end
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test "run with custom options" do
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@config[:servers] = { "web" => { "hosts" => [ "1.1.1.1" ], "options" => { "mount" => "somewhere" } } }
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@config[:healthcheck] = { "exposed_port" => 4999 }
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assert_equal \
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"docker run --detach --name healthcheck-app-123 --publish 4999:3000 --label service=healthcheck-app -e KAMAL_CONTAINER_NAME=\"healthcheck-app\" --env-file .kamal/env/roles/app-web.env --health-cmd \"curl -f http://localhost:3000/up || exit 1\" --health-interval \"1s\" --mount \"somewhere\" dhh/app:123",
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new_command.run.join(" ")
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end
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test "status" do
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assert_equal \
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"docker container ls --all --filter name=^healthcheck-app-123$ --quiet | xargs docker inspect --format '{{if .State.Health}}{{.State.Health.Status}}{{else}}{{.State.Status}}{{end}}'",
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new_command.status.join(" ")
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end
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test "container_health_log" do
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assert_equal \
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"docker container ls --all --filter name=^healthcheck-app-123$ --quiet | xargs docker inspect --format '{{json .State.Health}}'",
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new_command.container_health_log.join(" ")
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end
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test "stop" do
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assert_equal \
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"docker container ls --all --filter name=^healthcheck-app-123$ --quiet | xargs docker stop",
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new_command.stop.join(" ")
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end
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test "stop with destination" do
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@destination = "staging"
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assert_equal \
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"docker container ls --all --filter name=^healthcheck-app-staging-123$ --quiet | xargs docker stop",
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new_command.stop.join(" ")
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end
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test "remove" do
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assert_equal \
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"docker container ls --all --filter name=^healthcheck-app-123$ --quiet | xargs docker container rm",
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new_command.remove.join(" ")
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end
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test "remove with destination" do
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@destination = "staging"
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assert_equal \
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"docker container ls --all --filter name=^healthcheck-app-staging-123$ --quiet | xargs docker container rm",
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new_command.remove.join(" ")
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end
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test "logs" do
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assert_equal \
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"docker container ls --all --filter name=^healthcheck-app-123$ --quiet | xargs docker logs --tail 50 2>&1",
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new_command.logs.join(" ")
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end
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test "logs with custom lines number" do
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@config[:healthcheck] = { "log_lines" => 150 }
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assert_equal \
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"docker container ls --all --filter name=^healthcheck-app-123$ --quiet | xargs docker logs --tail 150 2>&1",
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new_command.logs.join(" ")
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end
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test "logs with destination" do
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@destination = "staging"
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assert_equal \
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"docker container ls --all --filter name=^healthcheck-app-staging-123$ --quiet | xargs docker logs --tail 50 2>&1",
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new_command.logs.join(" ")
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end
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private
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def new_command
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Kamal::Commands::Healthcheck.new(Kamal::Configuration.new(@config, destination: @destination, version: "123"))
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end
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end
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