init go version (#4)

.circleci/config.yml

@@ -0,0 +1,76 @@
+---
+version: 2.1
+
+orbs:
+  prometheus: prometheus/[email protected]
+
+jobs:
+  test:
+    docker:
+      - image: circleci/golang:1.12
+
+    steps:
+      - prometheus/setup_environment
+      - run: make style build
+      - prometheus/store_artifact:
+          file: locust_exporter
+
+  publish_master:
+    description: Build and publish container images from the master branch.
+    docker:
+      - image: circleci/golang:1.12
+    steps:
+      - prometheus/setup_build_environment
+      - prometheus/publish_images:
+          login_variable: REGISTRY_USER
+          organization: containersol
+          password_variable: REGISTRY_PASS
+          registry: docker.io
+
+  publish_release:
+    description: Build and publish binaries and container images for a given release tag.
+    docker:
+      - image: circleci/golang:1.12
+    steps:
+      - prometheus/setup_build_environment
+      - run: promu crossbuild tarballs
+      - run: promu checksum .tarballs
+      - run: promu release .tarballs
+      - store_artifacts:
+          destination: releases
+          path: .tarballs
+      - prometheus/publish_release_images:
+          login_variable: REGISTRY_USER
+          organization: containersol
+          password_variable: REGISTRY_PASS
+          registry: docker.io
+
+workflows:
+  version: 2
+  locust_exporter:
+    jobs:
+      - test:
+          filters:
+            tags:
+              only: /.*/
+      - prometheus/build:
+          name: build
+          filters:
+            tags:
+              only: /.*/
+      - publish_master:
+          requires:
+            - test
+            - build
+          filters:
+            branches:
+              only: master
+      - publish_release:
+          requires:
+            - test
+            - build
+          filters:
+            tags:
+              only: /^v[0-9]+(\.[0-9]+){2}(-.+|[^-.]*)$/
+            branches:
+              ignore: /.*/

.gitignore

@@ -1,89 +1,3 @@
-# Byte-compiled / optimized / DLL files
-__pycache__/
-*.py[cod]
-*$py.class
-
-# C extensions
-*.so
-
-# Distribution / packaging
-.Python
-env/
-build/
-develop-eggs/
-dist/
-downloads/
-eggs/
-.eggs/
-lib/
-lib64/
-parts/
-sdist/
-var/
-*.egg-info/
-.installed.cfg
-*.egg
-
-# PyInstaller
-#  Usually these files are written by a python script from a template
-#  before PyInstaller builds the exe, so as to inject date/other infos into it.
-*.manifest
-*.spec
-
-# Installer logs
-pip-log.txt
-pip-delete-this-directory.txt
-
-# Unit test / coverage reports
-htmlcov/
-.tox/
-.coverage
-.coverage.*
-.cache
-nosetests.xml
-coverage.xml
-*,cover
-.hypothesis/
-
-# Translations
-*.mo
-*.pot
-
-# Django stuff:
-*.log
-local_settings.py
-
-# Flask stuff:
-instance/
-.webassets-cache
-
-# Scrapy stuff:
-.scrapy
-
-# Sphinx documentation
-docs/_build/
-
-# PyBuilder
-target/
-
-# IPython Notebook
-.ipynb_checkpoints
-
-# pyenv
-.python-version
-
-# celery beat schedule file
-celerybeat-schedule
-
-# dotenv
-.env
-
-# virtualenv
-venv/
-ENV/
-
-# Spyder project settings
-.spyderproject
-
-# Rope project settings
-.ropeproject
+locust_exporter
+main
+.idea

.promu.yml

@@ -0,0 +1,23 @@
+verbose: true
+go:
+  version: 1.12
+  cgo: false
+repository:
+  path: github.com/ContainerSolutions/locust_exporter
+build:
+  flags: -a -tags netgo
+  ldflags: |
+    -s
+    -X {{repoPath}}/version.Version={{.Version}}
+    -X {{repoPath}}/version.Revision={{.Revision}}
+    -X {{repoPath}}/version.Branch={{.Branch}}
+    -X {{repoPath}}/version.BuildUser={{user}}@{{host}}
+    -X {{repoPath}}/version.BuildDate={{date "20060102-15:04:05"}}
+tarball:
+  prefix: .
+  files:
+    - LICENSE
+crossbuild:
+  platforms:
+    - linux/amd64
+    - linux/386

CHANGELOG.md

@@ -0,0 +1,9 @@
+# CHANGELOG
+
+## 0.2.0 / 2019-09-06
+
+Initial release of Go version
+
+## 0.1.0 / 2019-09-04
+
+Initial release of Python version

Dockerfile

@@ -1,7 +1,11 @@
-FROM python:3-alpine
-
-WORKDIR /usr/src/app
-COPY requirements.txt ./
-RUN pip install --no-cache-dir -r requirements.txt
+FROM golang:alpine AS builder
+RUN apk update && apk add --no-cache git
+WORKDIR $GOPATH/src/ContainerSolutions/locust_exporter/
 COPY . .
-CMD ["python", "./locust_exporter.py"]
+RUN GO111MODULE=on go mod download
+
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 GO111MODULE=on go build -a -installsuffix cgo -ldflags="-w -s" -o /go/bin/locust_exporter
+
+FROM scratch
+COPY --from=builder /go/bin/locust_exporter /go/bin/locust_exporter
+ENTRYPOINT ["/go/bin/locust_exporter"]