Make it happen
Silicon Valley startups in mid-2000s likely do not run their own IT operations (i.e. renting their own data centre spaces, purchasing their own rack-mounted servers). Since the launch of EC2, AWS has been renting extra computing capacity to those startups, in the IaaS model. The leased infrastructure requires maintenance work, and AWS realized that many … Read moreComputing services: from PaaS to Serverless
This post explains why I land on FluxCD GitOps for my project. Let’s star Background In the Korthweb project, I landed on Istio for the Ingress Gateway technology. I first attempted to expand the orthanc Helm Chart to bring Istio as dependency (sub-chart). One of the external chart for Istio gateway needs to be referenced … Read moreFluxCD: Continuous Deployment with GitOps
In a previous post, I introduced Terraform Cloud and covered how to use AWS profiles with Terraform. This time I explored some alternatives to Terraform Cloud, in the context of Azure. I use Scalr as an example of multi-cloud management platform. I will also discuss some issues I’ve came across while managing permissions and variables … Read moreInfrastructure deployment in Terraform 2/2
In deployment automation, I often had to create self-signed X.509 certificate for testing TLS traffic into Kubernetes. Sometimes self-signed, sometimes signed by a CA. This post summarized the approaches I’ve taken. Create self-signed certificate with OpenSSL Traditionally, this is done in three OpenSSL commands: I have an older post to cover the basics of cryptography … Read moreCreating X.509 TLS certificate in Kubernetes
Terraform is an excellent Infrastructure-as-Code (IaC) tool based on Hashicorp Configuration Language (HCL). Compared to JSON or YAML based declarative templates (e.g. CloudFormation and ARM), HCL is more concise, thanks to the flexibility of HCL. On the other hand, HCL is not as flexible as general purpose languages. For that sake, I see HCL as … Read moreInfrastructure deployment in Terraform 1/2
Having been in two discussions about Git branching strategy with different organizations, I decide to jot down the details of all the common branching strategies in one post. This should help organizations develop their branching policies. There is a lot from Atlassian documentation. I also find this article a good resource. Centralized workflow (no branching) … Read moreGit Branching Strategy