Obtaining SSL certificates with the help of cluster-issuer
Pre-Reads
Pre-requisites
kubectl is a CLI to connect to the kubernetes cluster from your machine
Install Visualstudio IDE Code for better code/configuration editing capabilities
All DIGIT services are packaged using helm charts
Installing Helm
Git
What is Cert-manager
Cert-manager adds certificates and certificate issuers as a resource types in kubernetes cluster,and simplifies the process of obtaining, renewing and using those certificates. It will ensure certificates are valid and up-to-date, and attempt to renew certificates at a configured time before expiring.
What is SSL Certificate
SSL Certificate is a digital certificate that authenticates a website's identity and enables encrypted connection. SSL stands for Secure Sockets Layer, a security protocol that creates an encrypted link between a web server and a web browser. SSL cetificates keeps internet connections secure and prevents criminals from reading or modifying information transferred between two systems.
Cert-Manager can issue certificates from a variety of supported sources, including Let's Encrypt, HashiCorp Vault, and Venafi as well as private PKI.
In eGov Organization we are using letsencrypt-prod,letsencrypt-staging as a certificate-issuer.
First, we have to clone DIGIT-DevOps repo.
Check the cert-manager chart templates which contains yaml files of clusterissuer and clusterrole in the below link.
If we want to override any values in the chart. Open values.yaml and customize the chart.
Open egov-demo template in the Visual Studio code.
Check whether the below configurations is present in your environment file. If not add these configurations in your environment file.
Deploying cert-manager
Run the following command to deploy only the cert-manager.
After deploying check the certificate is issued or not using the below command.
The following output will be displayed.
Once the certificate is issued we can see it in secrets.
The following output will be displayed
To know about the cluster-issuers used in our deployement we can use the following command.
The following output will be displayed
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