dennisseidel / dennisseidel.github.io Goto Github PK

Basics? Developer Environement? -> Foundational Skills?

Git Knowledge

• Git Styleguide
• Create new branches
• Use branches and if needed squash all commits related to a single issue into one commit
• Merge multiple commits:
  • https://git-scm.com/book/en/v2/Git-Tools-Rewriting-History
  • https://robots.thoughtbot.com/autosquashing-git-commits
  • https://www.ralfebert.de/git/rebase/
• Modify the last two commits:

git rebase -i HEAD~2

Or if they are the last two:

https://stackoverflow.com/a/24690646/1929968

git reset --soft "HEAD^"
git commit --amend
git push -f

Use git stash to switch change between branches - https://www.youtube.com/watch?v=KLEDKgMmbBI

# stash current state
git stash save "Worked on get identities/{identityId}"
# apply current stage (e.g. in other branch) but keep stash
git stash add
# apply current state and delete stash
git stash pop

Local Kubernetes/Istio Setup with Mincube

• Check the Istio Prerequisits
• Create a cicd machine preparation file & local setup (machine-setup.sh)
• Prepare the Machine Setup (create a local secret folder include all the infos required)

To run locally export export KUBE_ENV=local and execute the ./machine-setup.sh

Access distributed tracing

https://istio.io/docs/tasks/telemetry/distributed-tracing/

kubectl port-forward -n istio-system $(kubectl get pod -n istio-system -l app=jaeger -o jsonpath='{.items[0].metadata.name}') 16686:16686 &
Open http://localhost:16686

Important Commands

Delete the minkube cluster with minikube delete
helm del --purge istio delete isto from cluster
kubectl get deployments [pods ...] get the list of deployments
kubectl delete deployment echo-v1 delete something
kubectl get srv -n istio-system get the services in the istio namespace
kubectl describe pod echo-v1 (always use tab for complete) status of the cluster and events
kubectl logs pod echo-v1 get the strout logs of the pod
minishift logs the minishift logs
kubectl exec -it proposals-fccd8f5ff-jzrrx sh to access the od
kubectl exec proposals-v1-fccd8f5ff-75wbt -- nc -w 3 -v httpbin.org 80 run directly a command in the container

Get a local dns

Open the local hosts file with sudo vim /etc/hosts and add your minikube ip address to the domains you want e.g.

192.168.64.12  open.d10l.de
192.168.64.12  api.d10l.de

You have to update this entries with every start and when you want to connect to this domain on the internet you have to comment those entries out or remove them.

[ ] add a section about VSC to fork
[ ] update the links in docs/development-environment/development-environment.md
[ ] create pull request to the main repo

[ ] deploy the fork to github (look to the Makefile)
[ ] update the links in docs/development-environment/development-environment.md

https://hub.github.com/