Before you deploy the Helm Chart, perform the following steps:
- Create your Kubernetes Secrets manifest (this YAML stores your AWS credentials, so do not commit these to the repository):
$ cp secret-aws-credentials-template.yaml wotc-secret-aws-credentials.yaml
$ cat wotc-secret-aws-credentials.yaml
apiVersion: v1
kind: Secret
metadata:
# NOTE: Change "wotc" to your project name
name: wotc-airflow-dags-syncer-secrets
type: Opaque
data:
# This is the contents of your ~/.aws/credentials file (base64 encoded):
credentials: <base64 encoded aws credentials file>
- Create the AWS credentials K8s Secret:
$ kubectl create -f wotc-secret-aws-credentials.yaml
- Make changes to the Helm Chart deploy helper script:
$ cp deploy-helm-chart.sh wotc-deploy-helm-chart.sh
$ cat wotc-deploy-helm-chart.sh
#!/bin/bash
export PROJECT=wotc # aka "envrionment" (e.g., dev, stage, prod)
export AWS_ACCOUNT_ID=000000000000
export AWS_REGION=us-west-2
export IMAGE_NAME=wotc-airflow-dags
export IMAGE_TAG=latest
export IMAGE_REPOSITORY=${AWS_ACCOUNT_ID}.dkr.ecr.${AWS_REGION}.amazonaws.com/${IMAGE_NAME}
helm upgrade --install ${PROJECT} . \
-f values-dev.yaml \
--set=image.repository=${IMAGE_REPOSITORY} \
--set=image.tag=${IMAGE_TAG} \
--debug --dry-run # <- NOTE
NOTE: The --dry-run flag will not deploy anything. Remove it when you are ready to actually deploy. The dry run is there to validate that everything has been configured properly.
- Make changes to the
values.yamlfile:
$ cp values.yaml values-dev.yaml
NOTE: Make your actual changes to the above copied file.
After you have completed the above prerequisites, you are now ready to deploy your Helm Chart.
- Initialize Tiller:
$ kubectl apply -f helm-rbac.yaml
$ helm init --service-account tiller
- Check that Tiller Pod(s) are running:
$ kubectl -n kube-system get pods -l name=tiller
- Update the Helm deploy helper script:
$ cat deploy-helm-chart.sh
#!/bin/bash
export PROJECT=wotc # aka "envrionment" (e.g., dev, stage, prod)
export AWS_ACCOUNT_ID=000000000000
export AWS_REGION=us-west-2
export IMAGE_NAME=wotc-airflow-dags
export IMAGE_TAG=latest
export IMAGE_REPOSITORY=${AWS_ACCOUNT_ID}.dkr.ecr.${AWS_REGION}.amazonaws.com/${IMAGE_NAME}
helm upgrade --install ${PROJECT} . \
-f values-dev.yaml \
--set=image.repository=${IMAGE_REPOSITORY} \
--set=image.tag=${IMAGE_TAG} \
--debug --dry-run
- Deploy the Helm Chart:
$ ./deploy-helm-chart.sh
- If all goes well, you should see the status as "
DEPLOYED":
$ helm ls
NAME REVISION UPDATED STATUS CHART NAMESPACE
wotc 1 Wed May 1 15:52:13 2019 DEPLOYED airflow-dags-syncer-0.1.0 default
- Should anything go wrong with a deploy, you can delete the deploy and start again:
$ helm delete <project-name> --purge