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+/*
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+ Copyright 2020 Docker Compose CLI authors
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+
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+ Licensed under the Apache License, Version 2.0 (the "License");
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+ you may not use this file except in compliance with the License.
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+ You may obtain a copy of the License at
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+
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+ http://www.apache.org/licenses/LICENSE-2.0
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+
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+ Unless required by applicable law or agreed to in writing, software
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+ distributed under the License is distributed on an "AS IS" BASIS,
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+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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+ See the License for the specific language governing permissions and
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+ limitations under the License.
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+*/
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+
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+package e2e
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+
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+import (
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+ "os"
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+ "strings"
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+ "testing"
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+
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+ "gotest.tools/v3/assert"
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+ "gotest.tools/v3/icmd"
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+)
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+
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+func TestEnvPriority(t *testing.T) {
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+ c := NewParallelE2eCLI(t, binDir)
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+
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+ projectDir := "./fixtures/environment/env-priority"
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+
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+ t.Run("up", func(t *testing.T) {
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+ c.RunDockerOrExitError("rmi", "env-compose-priority")
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+ c.RunDockerComposeCmd("-f", "./fixtures/environment/env-priority/compose-with-env.yaml",
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+ "--project-directory", projectDir, "up", "-d", "--build")
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+ })
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+
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+ // Full options activated
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+ // 1. Compose file <-- Result expected
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+ // 2. Shell environment variables
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+ // 3. Environment file
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+ // 4. Dockerfile
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+ // 5. Variable is not defined
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+ t.Run("compose file priority", func(t *testing.T) {
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+ os.Setenv("WHEREAMI", "shell") //nolint:errcheck
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+ defer os.Unsetenv("WHEREAMI") //nolint:errcheck
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+
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+ res := c.RunDockerComposeCmd("-f", "./fixtures/environment/env-priority/compose-with-env.yaml",
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+ "--project-directory", projectDir, "--env-file", "./fixtures/environment/env-priority/.env.override",
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+ "run", "--rm", "-e", "WHEREAMI", "env-compose-priority")
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+
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+ assert.Equal(t, strings.TrimSpace(res.Stdout()), "Compose File")
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+ })
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+
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+ // No Compose file, all other options
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+ // 1. Compose file
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+ // 2. Shell environment variables <-- Result expected
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+ // 3. Environment file
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+ // 4. Dockerfile
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+ // 5. Variable is not defined
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+ t.Run("shell priority", func(t *testing.T) {
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+ os.Setenv("WHEREAMI", "shell") //nolint:errcheck
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+ defer os.Unsetenv("WHEREAMI") //nolint:errcheck
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+
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+ res := c.RunDockerComposeCmd("-f", "./fixtures/environment/env-priority/compose.yaml",
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+ "--project-directory", projectDir, "--env-file", "./fixtures/environment/env-priority/.env.override",
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+ "run", "--rm", "-e", "WHEREAMI", "env-compose-priority")
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+ assert.Equal(t, strings.TrimSpace(res.Stdout()), "shell")
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+ })
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+
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+ // No Compose file and env variable pass to the run command
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+ // 1. Compose file
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+ // 2. Shell environment variables <-- Result expected
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+ // 3. Environment file
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+ // 4. Dockerfile
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+ // 5. Variable is not defined
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+ t.Run("shell priority from run command", func(t *testing.T) {
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+ res := c.RunDockerComposeCmd("-f", "./fixtures/environment/env-priority/compose.yaml",
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+ "--project-directory", projectDir, "--env-file", "./fixtures/environment/env-priority/.env.override",
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+ "run", "--rm", "-e", "WHEREAMI=shell-run", "env-compose-priority")
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+ assert.Equal(t, strings.TrimSpace(res.Stdout()), "shell-run")
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+ })
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+
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+ // No Compose file & no env variable but override env file
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+ // 1. Compose file
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+ // 2. Shell environment variables
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+ // 3. Environment file <-- Result expected
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+ // 4. Dockerfile
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+ // 5. Variable is not defined
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+ t.Run("override env file", func(t *testing.T) {
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+ res := c.RunDockerComposeCmd("-f", "./fixtures/environment/env-priority/compose.yaml",
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+ "--project-directory", projectDir, "--env-file", "./fixtures/environment/env-priority/.env.override",
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+ "run", "--rm", "-e", "WHEREAMI", "env-compose-priority")
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+ assert.Equal(t, strings.TrimSpace(res.Stdout()), "override")
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+ })
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+
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+ // No Compose file & no env variable but override env file
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+ // 1. Compose file
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+ // 2. Shell environment variables
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+ // 3. Environment file <-- Result expected
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+ // 4. Dockerfile
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+ // 5. Variable is not defined
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+ t.Run("env file", func(t *testing.T) {
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+ res := c.RunDockerComposeCmd("-f", "./fixtures/environment/env-priority/compose.yaml",
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+ "--project-directory", projectDir, "run", "--rm", "-e", "WHEREAMI", "env-compose-priority")
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+ assert.Equal(t, strings.TrimSpace(res.Stdout()), "Env File")
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+ })
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+
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+ // No Compose file & no env variable, using an empty override env file
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+ // 1. Compose file
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+ // 2. Shell environment variables
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+ // 3. Environment file
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+ // 4. Dockerfile <-- Result expected
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+ // 5. Variable is not defined
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+ t.Run("use Dockerfile", func(t *testing.T) {
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+ res := c.RunDockerComposeCmd("-f", "./fixtures/environment/env-priority/compose.yaml",
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+ "--project-directory", projectDir, "--env-file", "./fixtures/environment/env-priority/.env.empty",
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+ "run", "--rm", "-e", "WHEREAMI", "env-compose-priority")
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+ assert.Equal(t, strings.TrimSpace(res.Stdout()), "Dockerfile")
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+ })
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+
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+ t.Run("down", func(t *testing.T) {
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+ c.RunDockerComposeCmd("--project-directory", projectDir, "down")
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+ })
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+}
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+
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+func TestEnvInterpolation(t *testing.T) {
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+ c := NewParallelE2eCLI(t, binDir)
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+
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+ projectDir := "./fixtures/environment/env-interpolation"
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+
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+ // No variable defined in the Compose file and env variable pass to the run command
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+ // 1. Compose file
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+ // 2. Shell environment variables <-- Result expected
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+ // 3. Environment file
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+ // 4. Dockerfile
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+ // 5. Variable is not defined
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+ t.Run("shell priority from run command", func(t *testing.T) {
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+ os.Setenv("WHEREAMI", "shell") //nolint:errcheck
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+ defer os.Unsetenv("WHEREAMI") //nolint:errcheck
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+ res := c.RunDockerComposeCmd("-f", "./fixtures/environment/env-interpolation/compose.yaml",
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+ "--project-directory", projectDir, "config")
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+
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+ res.Assert(t, icmd.Expected{Out: `IMAGE: default_env:shell`})
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+ })
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+}
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+
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+func TestCommentsInEnvFile(t *testing.T) {
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+ c := NewParallelE2eCLI(t, binDir)
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+
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+ projectDir := "./fixtures/environment/env-file-comments"
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+
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+ t.Run("comments in env files", func(t *testing.T) {
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+ c.RunDockerOrExitError("rmi", "env-file-comments")
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+
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+ c.RunDockerComposeCmd("-f", "./fixtures/environment/env-file-comments/compose.yaml",
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+ "--project-directory", projectDir, "up", "-d", "--build")
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+
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+ res := c.RunDockerComposeCmd("-f", "./fixtures/environment/env-file-comments/compose.yaml",
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+ "--project-directory", projectDir, "run", "--rm",
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+ "-e", "COMMENT", "-e", "NO_COMMENT", "env-file-comments")
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+
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+ res.Assert(t, icmd.Expected{Out: `COMMENT=1234`})
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+ res.Assert(t, icmd.Expected{Out: `NO_COMMENT=1234#5`})
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+
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+ c.RunDockerComposeCmd("--project-directory", projectDir, "down", "--rmi", "all")
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+ })
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+}
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Guillaume Lours