Validate the Kamal configuration giving useful warning on errors. Each section of the configuration has its own config class and a YAML file containing documented example configuration. You can run `kamal docs` to see the example configuration, and `kamal docs <section>` to see the example configuration for a specific section. The validation matches the configuration to the example configuration checking that there are no unknown keys and that the values are of matching types. Where there is more complex validation - e.g for envs and servers, we have custom validators that implement those rules. Additonally the configuration examples are used to generate the configuration documentation in the kamal-site repo. You generate them by running: ``` bundle exec bin/docs <kamal-site-checkout> ```
274 lines
11 KiB
Ruby
274 lines
11 KiB
Ruby
require "test_helper"
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class ConfigurationRoleTest < ActiveSupport::TestCase
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setup do
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@deploy = {
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service: "app", image: "dhh/app", registry: { "username" => "dhh", "password" => "secret" },
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servers: [ "1.1.1.1", "1.1.1.2" ],
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env: { "REDIS_URL" => "redis://x/y" }
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}
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@config = Kamal::Configuration.new(@deploy)
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@deploy_with_roles = @deploy.dup.merge({
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servers: {
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"web" => [ "1.1.1.1", "1.1.1.2" ],
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"workers" => {
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"hosts" => [ "1.1.1.3", "1.1.1.4" ],
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"cmd" => "bin/jobs",
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"env" => {
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"REDIS_URL" => "redis://a/b",
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"WEB_CONCURRENCY" => "4"
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}
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}
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}
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})
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@config_with_roles = Kamal::Configuration.new(@deploy_with_roles)
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end
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test "hosts" do
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assert_equal [ "1.1.1.1", "1.1.1.2" ], @config.role(:web).hosts
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assert_equal [ "1.1.1.3", "1.1.1.4" ], @config_with_roles.role(:workers).hosts
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end
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test "cmd" do
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assert_nil @config.role(:web).cmd
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assert_equal "bin/jobs", @config_with_roles.role(:workers).cmd
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end
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test "label args" do
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assert_equal [ "--label", "service=\"app\"", "--label", "role=\"workers\"", "--label", "destination" ], @config_with_roles.role(:workers).label_args
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end
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test "special label args for web" do
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assert_equal [ "--label", "service=\"app\"", "--label", "role=\"web\"", "--label", "destination", "--label", "traefik.http.services.app-web.loadbalancer.server.scheme=\"http\"", "--label", "traefik.http.routers.app-web.rule=\"PathPrefix(\\`/\\`)\"", "--label", "traefik.http.routers.app-web.priority=\"2\"", "--label", "traefik.http.middlewares.app-web-retry.retry.attempts=\"5\"", "--label", "traefik.http.middlewares.app-web-retry.retry.initialinterval=\"500ms\"", "--label", "traefik.http.routers.app-web.middlewares=\"app-web-retry@docker\"" ], @config.role(:web).label_args
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end
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test "custom labels" do
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@deploy[:labels] = { "my.custom.label" => "50" }
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assert_equal "50", @config.role(:web).labels["my.custom.label"]
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end
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test "custom labels via role specialization" do
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@deploy_with_roles[:labels] = { "my.custom.label" => "50" }
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@deploy_with_roles[:servers]["workers"]["labels"] = { "my.custom.label" => "70" }
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assert_equal "70", Kamal::Configuration.new(@deploy_with_roles).role(:workers).labels["my.custom.label"]
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end
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test "overwriting default traefik label" do
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@deploy[:labels] = { "traefik.http.routers.app-web.rule" => "\"Host(\\`example.com\\`) || (Host(\\`example.org\\`) && Path(\\`/traefik\\`))\"" }
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assert_equal "\"Host(\\`example.com\\`) || (Host(\\`example.org\\`) && Path(\\`/traefik\\`))\"", @config.role(:web).labels["traefik.http.routers.app-web.rule"]
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end
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test "default traefik label on non-web role" do
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config = Kamal::Configuration.new(@deploy_with_roles.tap { |c|
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c[:servers]["beta"] = { "traefik" => true, "hosts" => [ "1.1.1.5" ] }
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})
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assert_equal [ "--label", "service=\"app\"", "--label", "role=\"beta\"", "--label", "destination", "--label", "traefik.http.services.app-beta.loadbalancer.server.scheme=\"http\"", "--label", "traefik.http.routers.app-beta.rule=\"PathPrefix(\\`/\\`)\"", "--label", "traefik.http.routers.app-beta.priority=\"2\"", "--label", "traefik.http.middlewares.app-beta-retry.retry.attempts=\"5\"", "--label", "traefik.http.middlewares.app-beta-retry.retry.initialinterval=\"500ms\"", "--label", "traefik.http.routers.app-beta.middlewares=\"app-beta-retry@docker\"" ], config.role(:beta).label_args
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end
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test "env overwritten by role" do
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assert_equal "redis://a/b", @config_with_roles.role(:workers).env("1.1.1.3").clear["REDIS_URL"]
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assert_equal "\n", @config_with_roles.role(:workers).env("1.1.1.3").secrets_io.string
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assert_equal [ "--env-file", ".kamal/env/roles/app-workers.env", "--env", "REDIS_URL=\"redis://a/b\"", "--env", "WEB_CONCURRENCY=\"4\"" ], @config_with_roles.role(:workers).env_args("1.1.1.3")
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end
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test "container name" do
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ENV["VERSION"] = "12345"
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assert_equal "app-workers-12345", @config_with_roles.role(:workers).container_name
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assert_equal "app-web-12345", @config_with_roles.role(:web).container_name
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ensure
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ENV.delete("VERSION")
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end
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test "env args" do
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assert_equal [ "--env-file", ".kamal/env/roles/app-workers.env", "--env", "REDIS_URL=\"redis://a/b\"", "--env", "WEB_CONCURRENCY=\"4\"" ], @config_with_roles.role(:workers).env_args("1.1.1.3")
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end
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test "env secret overwritten by role" do
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@deploy_with_roles[:env] = {
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"clear" => {
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"REDIS_URL" => "redis://a/b"
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},
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"secret" => [
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"REDIS_PASSWORD"
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]
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}
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@deploy_with_roles[:servers]["workers"]["env"] = {
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"clear" => {
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"REDIS_URL" => "redis://a/b",
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"WEB_CONCURRENCY" => "4"
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},
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"secret" => [
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"DB_PASSWORD"
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]
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}
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ENV["REDIS_PASSWORD"] = "secret456"
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ENV["DB_PASSWORD"] = "secret&\"123"
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expected_secrets_file = <<~ENV
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REDIS_PASSWORD=secret456
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DB_PASSWORD=secret&\"123
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ENV
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assert_equal expected_secrets_file, Kamal::Configuration.new(@deploy_with_roles).role(:workers).env("1.1.1.3").secrets_io.string
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assert_equal [ "--env-file", ".kamal/env/roles/app-workers.env", "--env", "REDIS_URL=\"redis://a/b\"", "--env", "WEB_CONCURRENCY=\"4\"" ], @config_with_roles.role(:workers).env_args("1.1.1.3")
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ensure
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ENV["REDIS_PASSWORD"] = nil
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ENV["DB_PASSWORD"] = nil
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end
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test "env secrets only in role" do
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@deploy_with_roles[:servers]["workers"]["env"] = {
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"clear" => {
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"REDIS_URL" => "redis://a/b",
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"WEB_CONCURRENCY" => "4"
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},
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"secret" => [
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"DB_PASSWORD"
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]
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}
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ENV["DB_PASSWORD"] = "secret123"
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expected_secrets_file = <<~ENV
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DB_PASSWORD=secret123
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ENV
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assert_equal expected_secrets_file, Kamal::Configuration.new(@deploy_with_roles).role(:workers).env("1.1.1.3").secrets_io.string
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assert_equal [ "--env-file", ".kamal/env/roles/app-workers.env", "--env", "REDIS_URL=\"redis://a/b\"", "--env", "WEB_CONCURRENCY=\"4\"" ], @config_with_roles.role(:workers).env_args("1.1.1.3")
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ensure
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ENV["DB_PASSWORD"] = nil
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end
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test "env secrets only at top level" do
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@deploy_with_roles[:env] = {
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"clear" => {
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"REDIS_URL" => "redis://a/b"
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},
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"secret" => [
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"REDIS_PASSWORD"
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]
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}
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ENV["REDIS_PASSWORD"] = "secret456"
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expected_secrets_file = <<~ENV
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REDIS_PASSWORD=secret456
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ENV
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assert_equal expected_secrets_file, Kamal::Configuration.new(@deploy_with_roles).role(:workers).env("1.1.1.3").secrets_io.string
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assert_equal [ "--env-file", ".kamal/env/roles/app-workers.env", "--env", "REDIS_URL=\"redis://a/b\"", "--env", "WEB_CONCURRENCY=\"4\"" ], @config_with_roles.role(:workers).env_args("1.1.1.3")
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ensure
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ENV["REDIS_PASSWORD"] = nil
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end
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test "env overwritten by role with secrets" do
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@deploy_with_roles[:env] = {
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"clear" => {
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"REDIS_URL" => "redis://a/b"
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},
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"secret" => [
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"REDIS_PASSWORD"
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]
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}
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@deploy_with_roles[:servers]["workers"]["env"] = {
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"clear" => {
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"REDIS_URL" => "redis://c/d"
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}
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}
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ENV["REDIS_PASSWORD"] = "secret456"
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expected_secrets_file = <<~ENV
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REDIS_PASSWORD=secret456
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ENV
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config = Kamal::Configuration.new(@deploy_with_roles)
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assert_equal expected_secrets_file, config.role(:workers).env("1.1.1.3").secrets_io.string
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assert_equal [ "--env-file", ".kamal/env/roles/app-workers.env", "--env", "REDIS_URL=\"redis://c/d\"" ], config.role(:workers).env_args("1.1.1.3")
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ensure
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ENV["REDIS_PASSWORD"] = nil
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end
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test "env secrets_file" do
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assert_equal ".kamal/env/roles/app-workers.env", @config_with_roles.role(:workers).env("1.1.1.3").secrets_file
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end
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test "uses cord" do
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assert @config_with_roles.role(:web).uses_cord?
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assert_not @config_with_roles.role(:workers).uses_cord?
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end
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test "cord host file" do
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assert_match %r{.kamal/cords/app-web-[0-9a-f]{32}/cord}, @config_with_roles.role(:web).cord_host_file
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end
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test "cord volume" do
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assert_equal "/tmp/kamal-cord", @config_with_roles.role(:web).cord_volume.container_path
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assert_match %r{.kamal/cords/app-web-[0-9a-f]{32}}, @config_with_roles.role(:web).cord_volume.host_path
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assert_equal "--volume", @config_with_roles.role(:web).cord_volume.docker_args[0]
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assert_match %r{\$\(pwd\)/.kamal/cords/app-web-[0-9a-f]{32}:/tmp/kamal-cord}, @config_with_roles.role(:web).cord_volume.docker_args[1]
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end
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test "cord container file" do
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assert_equal "/tmp/kamal-cord/cord", @config_with_roles.role(:web).cord_container_file
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end
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test "asset path and volume args" do
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ENV["VERSION"] = "12345"
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assert_nil @config_with_roles.role(:web).asset_volume_args
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assert_nil @config_with_roles.role(:workers).asset_volume_args
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assert_nil @config_with_roles.role(:web).asset_path
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assert_nil @config_with_roles.role(:workers).asset_path
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assert_not @config_with_roles.role(:web).assets?
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assert_not @config_with_roles.role(:workers).assets?
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config_with_assets = Kamal::Configuration.new(@deploy_with_roles.dup.tap { |c|
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c[:asset_path] = "foo"
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})
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assert_equal "foo", config_with_assets.role(:web).asset_path
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assert_equal "foo", config_with_assets.role(:workers).asset_path
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assert_equal [ "--volume", "$(pwd)/.kamal/assets/volumes/app-web-12345:foo" ], config_with_assets.role(:web).asset_volume_args
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assert_nil config_with_assets.role(:workers).asset_volume_args
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assert config_with_assets.role(:web).assets?
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assert_not config_with_assets.role(:workers).assets?
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config_with_assets = Kamal::Configuration.new(@deploy_with_roles.dup.tap { |c|
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c[:servers]["web"] = { "hosts" => [ "1.1.1.1", "1.1.1.2" ], "asset_path" => "bar" }
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})
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assert_equal "bar", config_with_assets.role(:web).asset_path
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assert_nil config_with_assets.role(:workers).asset_path
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assert_equal [ "--volume", "$(pwd)/.kamal/assets/volumes/app-web-12345:bar" ], config_with_assets.role(:web).asset_volume_args
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assert_nil config_with_assets.role(:workers).asset_volume_args
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assert config_with_assets.role(:web).assets?
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assert_not config_with_assets.role(:workers).assets?
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ensure
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ENV.delete("VERSION")
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end
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test "asset extracted path" do
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ENV["VERSION"] = "12345"
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assert_equal ".kamal/assets/extracted/app-web-12345", @config_with_roles.role(:web).asset_extracted_path
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assert_equal ".kamal/assets/extracted/app-workers-12345", @config_with_roles.role(:workers).asset_extracted_path
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ensure
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ENV.delete("VERSION")
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end
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test "asset volume path" do
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ENV["VERSION"] = "12345"
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assert_equal ".kamal/assets/volumes/app-web-12345", @config_with_roles.role(:web).asset_volume_path
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assert_equal ".kamal/assets/volumes/app-workers-12345", @config_with_roles.role(:workers).asset_volume_path
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ensure
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ENV.delete("VERSION")
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end
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end
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