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Merge pull request #1 from objectpartners/init

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Initial plugin contribution
This commit is contained in:
Jack Spirou 2016-02-01 23:07:47 -06:00
commit 7ed6fc8809
9 changed files with 454 additions and 2 deletions
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38
.drone.yml Normal file
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build:
image: golang:1.5
environment:
- CGO_ENABLED=0
commands:
- make deps
- make vet
- make build
- make test
publish:
coverage:
when:
branch: master
docker:
username: $$DOCKER_USER
password: $$DOCKER_PASS
email: $$DOCKER_EMAIL
repo: plugins/drone-terraform
tag: latest
when:
branch: master
docker:
username: $$DOCKER_USER
password: $$DOCKER_PASS
email: $$DOCKER_EMAIL
repo: plugins/drone-terraform
tag: develop
when:
branch: develop
plugin:
name: Terraform
desc: Execute Terraform plan and apply
type: deploy
image: plugins/drone-terraform
labels:
- terraform

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.gitignore vendored Normal file
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DOCS.md Normal file
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Use the Terraform plugin to apply the infrastructure configuration contained within the repository. The following parameters are used to configure this plugin:
* `dry_run` - if true, calculates a plan but does __NOT__ apply it.
* `remote` - contains the configuration for the Terraform remote state tracking.
* `backend` - the Terraform remote state backend to use.
* `config` - a map of configuration parameters for the remote state backend. Each value is passed as a `-backend-config=<key>=<value>` option.
* `vars` - a map of variables to pass to the Terraform `plan` and `apply` commands. Each value is passed as a `-var <key>=<value>` option.
The following is a sample Terraform configuration in your .drone.yml file:
```yaml
deploy:
terraform:
dry_run: false
remote:
backend: S3
config:
bucket: my-terraform-config-bucket
key: tf-states/my-project
region: us-east-1
vars:
app_name: my-project
app_version: 1.0.0
```

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Dockerfile Normal file
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# Docker image for Drone's terraform deployment plugin
#
# CGO_ENABLED=0 go build -a -tags netgo
# docker build --rm=true -t plugins/drone-terraform .
FROM gliderlabs/alpine:3.2
RUN apk-install ca-certificates
ENV TERRAFORM_VERSION 0.6.9
RUN apk update && \
wget -q "https://circle-artifacts.com/gh/andyshinn/alpine-pkg-glibc/6/artifacts/0/home/ubuntu/alpine-pkg-glibc/packages/x86_64/glibc-2.21-r2.apk" && \
apk add --allow-untrusted glibc-2.21-r2.apk && \
wget -q -O terraform.zip "https://releases.hashicorp.com/terraform/${TERRAFORM_VERSION}/terraform_${TERRAFORM_VERSION}_linux_amd64.zip" && \
unzip terraform.zip -d /bin && \
rm -rf /var/cache/apk/* glibc-2.21-r2.apk terraform.zip
ADD drone-terraform /bin/
ENTRYPOINT ["/bin/drone-terraform"]

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LICENSE Normal file
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Apache License
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Makefile Normal file
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.PHONY: clean deps fmt vet test docker
EXECUTABLE ?= drone-terraform
IMAGE ?= plugins/$(EXECUTABLE)
CI_BUILD_NUMBER ?= 0
LDFLAGS = -X "main.buildDate=$(shell date -u '+%Y-%m-%d %H:%M:%S %Z')"
PACKAGES = $(shell go list ./... | grep -v /vendor/)
clean:
go clean -i ./...
deps:
go get -t ./...
fmt:
go fmt $(PACKAGES)
vet:
go vet $(PACKAGES)
test:
@for PKG in $(PACKAGES); do go test -cover -coverprofile $$GOPATH/src/$$PKG/coverage.out $$PKG || exit 1; done;
docker:
GOOS=linux GOARCH=amd64 CGO_ENABLED=0 go build -ldflags '-s -w $(LDFLAGS)'
docker build --rm -t $(IMAGE) .
$(EXECUTABLE): $(wildcard *.go)
go build -ldflags '-s -w $(LDFLAGS)'
build: $(EXECUTABLE)

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README.md
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# drone-terraform
Drone plugin for triggering Terraform deployments
# Drone Terraform Deploy Plugin
This project provides a [Drone](drone.io) plugin docker image that contains the [Terraform](terraform.io) binaries and a small Go app that receives the Drone meta-data and executes Terraform commands.
Documentation for Drone Plugin development can be found here: http://readme.drone.io/plugin/
See [DOCS](docs.md) for details on this plugin's configuration and usage.

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package main
import (
"fmt"
"os"
"os/exec"
"strings"
"github.com/drone/drone-plugin-go/plugin"
)
type terraform struct {
Remote remote `json:"remote"`
DryRun bool `json:"dry_run"`
Vars map[string]string `json:"vars"`
}
type remote struct {
Backend string `json:"backend"`
Config map[string]string `json:"config"`
}
func main() {
workspace := plugin.Workspace{}
vargs := terraform{}
plugin.Param("workspace", &workspace)
plugin.Param("vargs", &vargs)
plugin.MustParse()
var commands []*exec.Cmd
remote := vargs.Remote
if remote.Backend != "" {
commands = append(commands, remoteConfigCommand(remote))
}
commands = append(commands, planCommand(vargs.Vars))
if !vargs.DryRun {
commands = append(commands, applyCommand())
}
for _, c := range commands {
c.Env = os.Environ()
c.Dir = workspace.Path
c.Stdout = os.Stdout
c.Stderr = os.Stderr
trace(c)
err := c.Run()
if err != nil {
fmt.Println("Error!")
fmt.Println(err)
os.Exit(1)
}
fmt.Println("Command completed successfully")
}
}
func remoteConfigCommand(config remote) *exec.Cmd {
args := []string{
"remote",
"config",
fmt.Sprintf("-backend=%s", config.Backend),
}
for k, v := range config.Config {
args = append(args, fmt.Sprintf("-backend-config=%s=%s", k, v))
}
return exec.Command(
"terraform",
args...,
)
}
func planCommand(variables map[string]string) *exec.Cmd {
args := []string{
"plan",
"-out=plan.tfout",
}
for k, v := range variables {
args = append(args, "-var")
args = append(args, fmt.Sprintf("%s=%s", k, v))
}
return exec.Command(
"terraform",
args...,
)
}
func applyCommand() *exec.Cmd {
return exec.Command(
"terraform",
"apply",
"plan.tfout",
)
}
func trace(cmd *exec.Cmd) {
fmt.Println("$", strings.Join(cmd.Args, " "))
}