This is a very minimalistic tool for deploying kubernetes resources.
- Go template engine support
- Supports any kubernetes resource type
- Polls deployment resources for completion
Note that kd can be run with docker, check here for the latest image tags
docker run quay.io/ukhomeofficedigital/kd:latest --helpPlease download the required binary file from the releases page
The is only requirement and that is a kubectl binary in your ${PATH}. You
can use the docker image or download the binary for your OS from
releases page.
First, let's create a simple deployment template. Templating data comes from
the environment, so in this example we'll use NGINX_IMAGE_TAG environment
variable to set nginx image tag.
Create a nginx-deployment.yaml with the following content:
---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
name: nginx
spec:
replicas: 5
template:
metadata:
labels:
name: nginx
spec:
containers:
- name: nginx
image: nginx:{{.NGINX_IMAGE_TAG}}
ports:
- containerPort: 80
resources:
limits:
cpu: "0.1"
livenessProbe:
httpGet:
path: /
port: 80
initialDelaySeconds: 10
timeoutSeconds: 1$ export NGINX_IMAGE_TAG=1.11-alpine
$ kd --context=mykube --namespace=testing --file nginx-deployment.yaml
[INFO] 2016/09/21 14:06:37 main.go:153: deploying deployment/nginx
[INFO] 2016/09/21 14:06:38 main.go:157: deployment "nginx" submitted
[INFO] 2016/09/21 14:06:41 main.go:194: deployment "nginx" in progress. Unavailable replicas: 5.
[INFO] 2016/09/21 14:06:56 main.go:194: deployment "nginx" in progress. Unavailable replicas: 5.
[INFO] 2016/09/21 14:07:11 main.go:190: deployment "nginx" is complete. Available replicas: 5You can fail an ongoing deployment if there's been a new deployment by adding --fail-superseded flag.
Configuration can be provided via cli flags and arguments as well as environment variables.
$ kd --help
NAME:
kd - simple kubernetes resources deployment tool
USAGE:
kd [global options] command [command options] [arguments...]
VERSION:
v0.2.0
AUTHOR(S):
Vaidas Jablonskis <[email protected]>
COMMANDS:
help, h Shows a list of commands or help for one command
GLOBAL OPTIONS:
--debug debug output [$DEBUG, $PLUGIN_DEBUG]
--insecure-skip-tls-verify if true, the server's certificate will not be checked for validity [$INSECURE_SKIP_TLS_VERIFY, $PLUGIN_INSECURE_SKIP_TLS_VERIFY]
--kube-server URL, -s URL kubernetes api server URL [$KUBE_SERVER, $PLUGIN_KUBE_SERVER]
--kube-token TOKEN, -t TOKEN kubernetes auth TOKEN [$KUBE_TOKEN, $PLUGIN_KUBE_TOKEN]
--context CONTEXT, -c CONTEXT kube config CONTEXT [$KUBE_CONTEXT, $PLUGIN_CONTEXT]
--namespace NAMESPACE, -n NAMESPACE kubernetes NAMESPACE [$KUBE_NAMESPACE, $PLUGIN_KUBE_NAMESPACE]
--fail-superseded fail deployment if it has been superseded by another deployment. WARNING: there are some bugs in kubernetes. [$FAIL_SUPERSEDED, $PLUGIN_FAIL_SUPERSEDED]
--file value, -f value list of kubernetes resources FILE [$FILES, $PLUGIN_FILES]
--retries value number of deployment status check retries (default: 10) [$RETRIES, $PLUGIN_RETRIES]
--check-interval value deployment status check interval (default: 15s) [$CHECK_INTERVAL, $PLUGIN_CHECK_INTERVAL]
--help, -h show help
--version, -v print the versionDependencies are located in the vendor directory and managed using govendor cli tool.
go test -v -cover
mkdir -p bin
GOOS=linux GOARCH=amd64 CGO_ENABLED=0 go build -ldflags "-X main.Version=dev+git" -o bin/kd_linux_amd64
You can also build kd in a docker container:
docker run --rm -v $PWD:/go/src/github.com/UKHomeOffice/kd -w /go/src/github.com/UKHomeOffice/kd -ti golang:1.6 bash
cd /go/src/UKHomeOffice/kd
go get
GOOS=linux GOARCH=amd64 CGO_ENABLED=0 go build -ldflags "-X main.Version=dev+git" -o bin/kd_linux_amd64Push / Merge to master will produce a docker
image with a tag latest.
To create a new release, just create a new tag off master.
We welcome pull requests. Please raise an issue to discuss your changes before submitting a patch.
Vaidas Jablonskis vaijab
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