Previously, our team used Jenkins. However, since it's a shared deployment resource we don't have admin access. We tried GoCD as it's open source and we really like. We set up our deployment pipeline to run whenever codes are merged to master, run the unit test and revert back if it doesn't pass. Once it's deployed to the staging environment, we can simply do 1-click to deploy the appropriate version to production. We use this to deploy to an on-prem server and also AWS. Some deployment pipelines use custom Powershell script for.Net application, some others use Bash script to execute the docker push and cloud formation template to build elastic beanstalk.
If you need to automate the deployment of environments in Kubernetes and these environments should be easily replicable in other regions of your cloud provider or even in other cloud providers, then this is the tool for you. Just be prepared for a certain degree of complexity when creating the charts.
Pipeline-as-Code works really well. All our pipelines are defined in yml files, which are checked into SCM.
The ability to link multiple pipelines together is really cool. Later pipelines can declare a dependency to pick up the build artifacts of earlier ones.
Agents definition is really great. We can define multiple different kinds of environments to best suit our diverse build systems.
We didn't really need support, but the open-source community seemed responsive and informative when it came to issues. Many cloud native consultancy companies (including ourselves) offer support for Helm.
GoCD is easier to setup, but harder to customize at runtime. There's no way to trigger a pipeline with custom parameters.
Jenkins is more flexible at runtime. You can define multiple user-provided parameters so when user needs to trigger a build, there's a form for him/her to input the parameters.
We have a natural trending to use what is a reference in its space and Helm has being leader in its area for a long time. Since it has all features we need didn't make sense to us to invest time on researching and testing other alternatives, so Helm was our first and only tool in regards of automating deployments on Kubernetes
Settings.xml need to be backed up periodically. It contains all the settings for your pipelines! We accidentally deleted before and we have to restore and re-create several missing pipelines
More straight forward use of API and allows filtering e.g., pull all pipelines triggered after this date
