Redirect buildx build output to stdout

Docker buildx build outputs the build logs to stderr by default.
SSHKit displays stderr logs in red, which can suggest that an error has
occurred.

Redirect the output to stdout, so it shows in green. If there is an
error, the output will be repeated in red anyway.

Fixes: https://github.com/basecamp/kamal/issues/1356
This commit is contained in:
Donal McBreen
2025-04-21 10:19:36 +01:00
parent cd9d01b016
commit 93d1bd1369
3 changed files with 25 additions and 24 deletions

View File

@@ -25,7 +25,7 @@ class CliBuildTest < CliTestCase
assert_match /Cloning repo into build directory/, output
assert_match /git -C #{Dir.tmpdir}\/kamal-clones\/app-#{pwd_sha} clone #{Dir.pwd}/, output
assert_match /docker --version && docker buildx version/, output
assert_match /docker buildx build --output=type=registry --platform linux\/amd64 --builder kamal-local-docker-container -t dhh\/app:999 -t dhh\/app:latest --label service="app" --file Dockerfile \. as .*@localhost/, output
assert_match /docker buildx build --output=type=registry --platform linux\/amd64 --builder kamal-local-docker-container -t dhh\/app:999 -t dhh\/app:latest --label service="app" --file Dockerfile \. 2>&1 as .*@localhost/, output
end
end
end
@@ -47,7 +47,7 @@ class CliBuildTest < CliTestCase
assert_match /Cloning repo into build directory/, output
assert_match /git -C #{Dir.tmpdir}\/kamal-clones\/app-#{pwd_sha} clone #{Dir.pwd}/, output
assert_match /docker --version && docker buildx version/, output
assert_match /docker buildx build --output=type=docker --platform linux\/amd64 --builder kamal-local-docker-container -t dhh\/app:999 -t dhh\/app:latest --label service="app" --file Dockerfile \. as .*@localhost/, output
assert_match /docker buildx build --output=type=docker --platform linux\/amd64 --builder kamal-local-docker-container -t dhh\/app:999 -t dhh\/app:latest --label service="app" --file Dockerfile \. 2>&1 as .*@localhost/, output
end
end
end
@@ -71,7 +71,7 @@ class CliBuildTest < CliTestCase
SSHKit::Backend::Abstract.any_instance.expects(:execute).with(:git, "-C", build_directory, :submodule, :update, "--init")
SSHKit::Backend::Abstract.any_instance.expects(:execute)
.with(:docker, :buildx, :build, "--output=type=registry", "--platform", "linux/amd64", "--builder", "kamal-local-docker-container", "-t", "dhh/app:999", "-t", "dhh/app:latest", "--label", "service=\"app\"", "--file", "Dockerfile", ".")
.with(:docker, :buildx, :build, "--output=type=registry", "--platform", "linux/amd64", "--builder", "kamal-local-docker-container", "-t", "dhh/app:999", "-t", "dhh/app:latest", "--label", "service=\"app\"", "--file", "Dockerfile", ".", "2>&1")
SSHKit::Backend::Abstract.any_instance.expects(:capture_with_info)
.with(:git, "-C", anything, :"rev-parse", :HEAD)
@@ -95,7 +95,7 @@ class CliBuildTest < CliTestCase
assert_no_match /Cloning repo into build directory/, output
assert_hook_ran "pre-build", output
assert_match /docker --version && docker buildx version/, output
assert_match /docker buildx build --output=type=registry --platform linux\/amd64 --builder kamal-local-docker-container -t dhh\/app:999 -t dhh\/app:latest --label service="app" --file Dockerfile . as .*@localhost/, output
assert_match /docker buildx build --output=type=registry --platform linux\/amd64 --builder kamal-local-docker-container -t dhh\/app:999 -t dhh\/app:latest --label service="app" --file Dockerfile . 2>&1 as .*@localhost/, output
end
end
@@ -165,7 +165,7 @@ class CliBuildTest < CliTestCase
.returns("")
SSHKit::Backend::Abstract.any_instance.expects(:execute)
.with(:docker, :buildx, :build, "--output=type=registry", "--platform", "linux/amd64", "--builder", "kamal-local-docker-container", "-t", "dhh/app:999", "-t", "dhh/app:latest", "--label", "service=\"app\"", "--file", "Dockerfile", ".")
.with(:docker, :buildx, :build, "--output=type=registry", "--platform", "linux/amd64", "--builder", "kamal-local-docker-container", "-t", "dhh/app:999", "-t", "dhh/app:latest", "--label", "service=\"app\"", "--file", "Dockerfile", ".", "2>&1")
run_command("push").tap do |output|
assert_match /WARN Missing compatible builder, so creating a new one first/, output
@@ -307,7 +307,7 @@ class CliBuildTest < CliTestCase
run_command("dev", "--verbose").tap do |output|
assert_no_match(/Cloning repo into build directory/, output)
assert_match(/docker --version && docker buildx version/, output)
assert_match(/docker buildx build --output=type=docker --platform linux\/amd64 --builder kamal-local-docker-container -t dhh\/app:999-dirty -t dhh\/app:latest-dirty --label service="app" --file Dockerfile \. as .*@localhost/, output)
assert_match(/docker buildx build --output=type=docker --platform linux\/amd64 --builder kamal-local-docker-container -t dhh\/app:999-dirty -t dhh\/app:latest-dirty --label service="app" --file Dockerfile \. 2>&1 as .*@localhost/, output)
end
end
end
@@ -319,7 +319,7 @@ class CliBuildTest < CliTestCase
run_command("dev", "--output=local", "--verbose").tap do |output|
assert_no_match(/Cloning repo into build directory/, output)
assert_match(/docker --version && docker buildx version/, output)
assert_match(/docker buildx build --output=type=local --platform linux\/amd64 --builder kamal-local-docker-container -t dhh\/app:999-dirty -t dhh\/app:latest-dirty --label service="app" --file Dockerfile \. as .*@localhost/, output)
assert_match(/docker buildx build --output=type=local --platform linux\/amd64 --builder kamal-local-docker-container -t dhh\/app:999-dirty -t dhh\/app:latest-dirty --label service="app" --file Dockerfile \. 2>&1 as .*@localhost/, output)
end
end
end