Migrate CF CLI Bosh release to GitHub Action workflow (#19)

- Setup devcontainer-based local environment using cached base image
- Use nekto/act to iterate on the pipeline locally
- Extract shepherd leasing option into the separate remote action
- Implenent machanism to sync GHA variables and secrets between repositories

Co-authored-by: Michael Chinigo <[email protected]>
Co-authored-by: Greg Weresch <[email protected]>
Co-authored-by: Shwetha Gururaj <[email protected]>
Co-authored-by: Joao De Almeida Pereira <[email protected]>

.changeset/config.json

@@ -0,0 +1,11 @@
+{
+  "$schema": "https://unpkg.com/@changesets/[email protected]/schema.json",
+  "changelog": "@changesets/cli/changelog",
+  "commit": false,
+  "fixed": [],
+  "linked": [],
+  "access": "restricted",
+  "baseBranch": "main",
+  "updateInternalDependencies": "patch",
+  "ignore": []
+}

.devcontainer/Dockerfile

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+FROM ghcr.io/cloudfoundry/bosh-package-cf-cli-release-ci:main-latest
+
+RUN apt update && apt install --yes \
+    entr \
+    fzf \
+    htop \
+    neovim
+
+RUN curl --proto '=https' --tlsv1.2 -sSf https://raw.githubusercontent.com/nektos/act/master/install.sh | sudo bash

.devcontainer/devcontainer.json

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+{
+  "name": "Cloudfoundry CLI Bosh Release",
+  "dockerFile": "Dockerfile",
+  "features": {
+    "ghcr.io/devcontainers/features/docker-outside-of-docker:1": {},
+    "ghcr.io/devcontainers/features/github-cli:1": {},
+    "ghcr.io/devcontainers/features/sshd:1": {}
+  },
+  "customizations": {
+    "vscode": {
+      "settings": {},
+      "extensions": [
+        "DavidAnson.vscode-markdownlint",
+        "GitHub.vscode-pull-request-github",
+        "editorconfig.editorconfig",
+        "github.vscode-github-actions",
+        "ms-vscode.makefile-tools",
+        "ms-vsliveshare.vsliveshare",
+        "timonwong.shellcheck",
+        "vmware.vscode-concourse"
+      ]
+    }
+  }
+}

.editorconfig

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+root = true
+
+[*]
+end_of_line = lf
+indent_size = 2
+indent_style = space
+insert_final_newline = true
+
+[Makefile]
+indent_style = tab

.github/.secrets

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+AWS_S3_ACCESS_KEY_ID:      fake-aws-s3-access-key-id
+AWS_S3_ASSUME_ROLE_ARN:    fake-aws-s3-assume-role-arn
+AWS_S3_SECRET_ACCESS_KEY:  fake-aws-s3-secret-access-key
+SHEPHERD_API_ENDPOINT:     fake-shepherd-api-endpoint
+SHEPHERD_API_TOKEN:        fake-shepherd-api-token

.github/.vars

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+AWS_S3_REGION:            us-east-2
+AWS_S3_BUCKET:            cf-cli-bosh-release-dev
+PRODUCTION:               true
+# BRANCH_SUFFIX:            -shadow
+# SKIP_TESTS:               false
+# ENV_ID:

.github/workflows/README.md

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+# GHA Workflows
+
+## [Create Bosh Release](create-bosh-release.yml)
+
+Why? To create a new cf cli bosh release including major cli versions.
+
+### Resources
+- [Old Concourse implementation of the release pipeline](https://ci.cli.fun/teams/main/pipelines/cf-cli-release-toolsmiths)
+    - [pipeline definition](../../ci/pipeline-toolsmiths.yml)
+
+### Plan
+
+- Acquire cf cli linux binaries for v7, and v8 from s3
+- Detect latest tag under each major version
+
+- ...
+
+- Upload (where?) newly created cf cli bosh release.
+- Update Releases section on GitHub https://github.com/cloudfoundry/bosh-package-cf-cli-release/releases