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Replace Traefik with mproxy

Browse Source 
[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.
This commit is contained in:
Donal McBreen
2024-03-08 08:19:48 +00:00
parent 8bb596e216
commit 9c4747ec0c
52 changed files with 648 additions and 912 deletions
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12
test/configuration_test.rb
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@@ -73,13 +73,13 @@ class ConfigurationTest < ActiveSupport::TestCase
assert_equal "1.1.1.1", @config_with_roles.primary_host
end
test "traefik hosts" do
assert_equal [ "1.1.1.1", "1.1.1.2" ], @config_with_roles.traefik_hosts
test "proxy hosts" do
assert_equal [ "1.1.1.1", "1.1.1.2" ], @config_with_roles.proxy_hosts
@deploy_with_roles[:servers]["workers"]["traefik"] = true
@deploy_with_roles[:servers]["workers"]["proxy"] = true
config = Kamal::Configuration.new(@deploy_with_roles)
assert_equal [ "1.1.1.1", "1.1.1.2", "1.1.1.3" ], config.traefik_hosts
assert_equal [ "1.1.1.1", "1.1.1.2", "1.1.1.3" ], config.proxy_hosts
end
test "version no git repo" do
@@ -262,7 +262,7 @@ class ConfigurationTest < ActiveSupport::TestCase
volume_args: [ "--volume", "/local/path:/container/path" ],
builder: {},
logging: [ "--log-opt", "max-size=\"10m\"" ],
healthcheck: { "path"=>"/up", "port"=>3000, "max_attempts" => 7, "exposed_port" => 3999, "cord" => "/tmp/kamal-cord", "log_lines" => 50 } }
healthcheck: { "path"=>"/up", "port"=>3000, "max_attempts" => 7, "exposed_port" => 3999, "log_lines" => 50 } }
assert_equal expected_config, @config.to_h
end
@@ -320,7 +320,7 @@ class ConfigurationTest < ActiveSupport::TestCase
assert_equal "alternate_web", config.primary_role.name
assert_equal "1.1.1.4", config.primary_host
assert config.role(:alternate_web).primary?
assert config.role(:alternate_web).running_traefik?
assert config.role(:alternate_web).running_proxy?
end
test "primary role missing" do