Moved from github.com/observatorium/opentelemetry-collector-builder (#3)

Signed-off-by: Juraci Paixão Kröhling <juraci@kroehling.de>

.github/mergify.yml

@@ -0,0 +1,19 @@
+pull_request_rules:
+  - name: remove outdated reviews
+    conditions:
+      - base=master
+    actions:
+      dismiss_reviews: {}
+
+  - name: Automatic merge when all checks pass and the PR is approved
+    conditions:
+      - "#approved-reviews-by>=1"
+      - "-draft"
+      - "status-success=Unit tests"
+      - "status-success=Code standards (linting)"
+      - "status-success=Security"
+      - "status-success=Integration test"
+    actions:
+      merge:
+        method: squash
+        commit_message: title+body

.github/workflows/go.yaml

@@ -0,0 +1,56 @@
+name: "Continuous Integration"
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  unit-tests:
+    name: Unit tests
+    runs-on: ubuntu-20.04
+    steps:
+
+    - name: Set up Go
+      uses: actions/setup-go@v2
+      with:
+        go-version: 1.14
+
+    - name: Check out code into the Go module directory
+      uses: actions/checkout@v2
+
+    - name: Test
+      run: go test -v ./...
+
+  lint:
+    name: Code standards (linting)
+    runs-on: ubuntu-20.04
+    steps:
+    - name: Check out code into the Go module directory
+      uses: actions/checkout@v2
+
+    - name: Lint
+      uses: golangci/golangci-lint-action@v2
+      with:
+        version: v1.29
+        args: --enable=gosec,maligned,misspell
+        only-new-issues: true
+
+  security:
+    name: Security
+    runs-on: ubuntu-20.04
+    steps:
+    - name: Check out code into the Go module directory
+      uses: actions/checkout@v2
+
+    - name: Initialize CodeQL
+      uses: github/codeql-action/init@v1
+      with:
+        languages: go
+
+    - name: Autobuild
+      uses: github/codeql-action/autobuild@v1
+
+    - name: Perform CodeQL Analysis
+      uses: github/codeql-action/analyze@v1

.github/workflows/integration-test.yaml

@@ -0,0 +1,24 @@
+name: Integration tests
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  integration-test:
+    name: Integration test
+    runs-on: ubuntu-20.04
+    steps:
+
+    - name: Set up Go
+      uses: actions/setup-go@v2
+      with:
+        go-version: 1.14
+
+    - name: Check out code into the Go module directory
+      uses: actions/checkout@v2
+
+    - name: Test
+      run: ./test/test.sh

.github/workflows/release.yml

@@ -0,0 +1,29 @@
+name: goreleaser
+
+on:
+  push:
+    tags:
+      - 'v*'
+
+jobs:
+  goreleaser:
+    runs-on: ubuntu-20.04
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+      -
+        name: Set up Go
+        uses: actions/setup-go@v2
+        with:
+          go-version: 1.14
+      -
+        name: Run GoReleaser
+        uses: goreleaser/goreleaser-action@v2
+        with:
+          version: latest
+          args: release --rm-dist
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.gitignore

@@ -0,0 +1,37 @@
+
+# Created by https://www.toptal.com/developers/gitignore/api/go,vscode
+# Edit at https://www.toptal.com/developers/gitignore?templates=go,vscode
+
+### Go ###
+# Binaries for programs and plugins
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+
+# Test binary, built with `go test -c`
+*.test
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out
+
+# Dependency directories (remove the comment below to include it)
+# vendor/
+
+### Go Patch ###
+/vendor/
+/Godeps/
+
+### vscode ###
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+*.code-workspace
+
+# End of https://www.toptal.com/developers/gitignore/api/go,vscode
+
+/dist/
+opentelemetry-collector-builder

.golangci.yaml

@@ -0,0 +1,18 @@
+# all available settings of specific linters
+linters-settings:
+  goheader:
+    template-path: header.txt
+  goimports:
+    local-prefixes: github.com/open-telemetry/opentelemetry-collector-builder
+  maligned:
+    suggest-new: true
+  misspell:
+    locale: US
+
+linters:
+  enable:
+    - goheader
+    - goimports
+    - maligned
+    - misspell
+    - gosec

.goreleaser.yml

@@ -0,0 +1,33 @@
+before:
+  hooks:
+    - go mod download
+builds:
+  - flags:
+      - -trimpath
+    ldflags:
+      - -s -w -X github.com/open-telemetry/opentelemetry-collector-builder/cmd.version={{.Version}} -X github.com/open-telemetry/opentelemetry-collector-builder/cmd.date={{.Date}}
+    env:
+      - CGO_ENABLED=0
+    goos:
+      - linux
+      - windows
+      - darwin
+    goarch:
+      - amd64
+      - arm
+      - arm64
+    goarm:
+      - 6
+      - 7
+archives:
+  - format: binary
+checksum:
+  name_template: "checksums.txt"
+snapshot:
+  name_template: "{{ .Tag }}-next"
+changelog:
+  sort: asc
+  filters:
+    exclude:
+      - "^docs:"
+      - "^test:"

LICENSE

@@ -1,3 +1,4 @@
+
                                  Apache License
                            Version 2.0, January 2004
                         http://www.apache.org/licenses/

README.md

@@ -1,2 +1,87 @@
-# opentelemetry-collector-builder
-OpenTelemetry Collector Builder
+# OpenTelemetry Collector builder
+
+This program generates a custom OpenTelemetry Collector binary based on a given configuration.
+
+## TL;DR
+```console
+$ go get github.com/open-telemetry/opentelemetry-collector-builder
+$ cat > ~/.otelcol-builder.yaml <<EOF
+exporters:
+  - gomod: "github.com/open-telemetry/opentelemetry-collector-contrib/exporter/alibabacloudlogserviceexporter v0.19.0"
+EOF
+$ opentelemetry-collector-builder --output-path=/tmp/dist
+$ cat > /tmp/otelcol.yaml <<EOF
+receivers:
+  otlp:
+    protocols:
+      grpc:
+        endpoint: localhost:4317
+
+processors:
+  batch:
+
+exporters:
+  logging:
+
+service:
+  pipelines:
+    traces:
+      receivers:
+      - otlp
+      processors: 
+      - batch
+      exporters:
+      - logging
+EOF
+$ /tmp/dist/otelcol-custom --config=/tmp/otelcol.yaml
+```
+
+## Installation
+
+Download the binary for your respective platform under the ["Releases"](https://github.com/open-telemetry/opentelemetry-collector-builder/releases/latest) page.
+
+## Running
+
+A configuration file isn't strictly required, but the final artifact won't be different than a regular OpenTelemetry Collector. You probably want to specify at least one module (extension, exporter, receiver, processor) to add to your distribution. You can specify them via a configuration file. When no `--config` flag is provided with the location for the configuration file, `${HOME}/.otelcol-builder.yaml` will be used, if available.
+
+```console
+$ opentelemetry-collector-builder --config config.yaml
+```
+
+Use `opentelemetry-collector-builder --help` to learn about which flags are available.
+
+## Configuration
+
+The configuration file is composed of two main parts: `dist` and module types. All `dist` options can be specified via command line flags:
+
+```console
+$ opentelemetry-collector-builder --name="my-otelcol"
+```
+
+The module types are specified at the top-level, and might be: `extensions`, `exporters`, `receivers` and `processors`. They all accept a list of components, and each component is required to have at least the `gomod` entry. When not specified, the `import` value is inferred from the `gomod`. When not specified, the `name` is inferred from the `import`.
+
+The `import` might specify a more specific path than what is specified in the `gomod`. For instance, your Go module might be `gitlab.com/myorg/myrepo` and the `import` might be `gitlab.com/myorg/myrepo/myexporter`.
+
+The `name` will typically be omitted, except when multiple components have the same name. In such case, set a unique name for each module.
+
+Optionally, a list of `go mod` replace entries can be provided, in case custom overrides are needed. This is typically necessary when a processor or some of its transitive dependencies have dependency problems.
+
+```yaml
+dist:
+    module: github.com/open-telemetry/opentelemetry-collector-builder # the module name for the new distribution, following Go mod conventions. Optional, but recommended.
+    name: otelcol-custom # the binary name. Optional.
+    description: "Custom OpenTelemetry Collector distribution" # a long name for the application. Optional.
+    include_core: true # whether the core components should be included in the distribution. Optional.
+    otelcol_version: "0.19.0" # the OpenTelemetry Collector version to use as base for the distribution. Optional.
+    output_path: /tmp/otelcol-distributionNNN # the path to write the output (sources and binary). Optional.
+    version: "1.0.0" # the version for your custom OpenTelemetry Collector. Optional.
+    go: "/usr/bin/go" # which Go binary to use to compile the generated sources. Optional.
+exporters:
+  - gomod: "github.com/open-telemetry/opentelemetry-collector-contrib/exporter/alibabacloudlogserviceexporter v0.19.0" # the Go module for the component. Required.
+    import: "github.com/open-telemetry/opentelemetry-collector-contrib/exporter/alibabacloudlogserviceexporter" # the import path for the component. Optional.
+    name: "alibabacloudlogserviceexporter" # package name to use in the generated sources. Optional.
+    path: "./alibabacloudlogserviceexporter" # in case a local version should be used for the module, the path relative to the current dir, or a full path can be specified. Optional.
+replaces:
+  # a list of "replaces" directives that will be part of the resulting go.mod
+  - github.com/open-telemetry/opentelemetry-collector-contrib/internal/common => github.com/open-telemetry/opentelemetry-collector-contrib/internal/common v0.19.0
+```

RELEASE.md

@@ -0,0 +1,12 @@
+# Releasing the OpenTelemetry Collector Builder
+
+This project uses [`goreleaser`](https://github.com/goreleaser/goreleaser) to manage the release of new versions.
+
+To release a new version, simply add a tag named `vX.Y.Z`, like:
+
+```
+git tag -a v0.1.1 -m "Release v0.1.1"
+git push upstream v0.1.1
+```
+
+A new GitHub workflow should be started, and at the end, a GitHub release should have been created, similar with the ["Release v0.1.0"](https://github.com/open-telemetry/opentelemetry-collector-builder/releases/tag/v0.1.0).