-
Spring Cloud Kubernetes app using AP4K for YAML generation for Kubernetes
- kubectl create --filename target/classes/META-INF/ap4k/kubernetes.yml
- Chaos-monkey integration
- Swagger API
- Kubernetic to monitor the pods/deployment/config
- GatewayApplication.java w/ RouteLocator containing load balanced URI endpoints containing service names
- https://www.youtube.com/watch?v=u64jexEX_RY
- In Stage 1, Use a JDK to build the image and in Stage 2, use the JAR + a JRE as a base image. Save bloat.
- Use docker-compose.dev.yml or docker-compose.prod.yml names for different environments
- Use docker --memory to set a limit for the container
- Use docker stats to monitor resources in your container
- For kubernetes, you typically do not need the ssh key. You use kubernetes commands to get a shell within a pod
- kubectl get pods
- kubectl exec -it pod sh
- kubectl config set-context --current --namespace=dev-ep6
- kubectl get namespace
- kubectx to switch namespaces
- Show repos with
helm repo list - Add a repo with
helm add repo stable https://kubernetes-charts.storage.googleapis.com - Install an app via a chart on minikube
helm install stable/redis --set serviceType=NodePort --generate-name - Delete a helm chart app on minikube
helm delete [generated-name] - Chomp whitespace in the direction of the dash {{- or -}}
- Chomp newlines with ** at beginning or * at end of lines before condition
- the 'with' conditional sets the scope to the variable and shortens references there in
- https://medium.com/@Clovis_app/configuration-of-a-beautiful-efficient-terminal-and-prompt-on-osx-in-7-minutes-827c29391961
- https://github.com/zsh-users/zsh-autosuggestions/blob/master/INSTALL.md#oh-my-zsh
- initEnvironment variables in a helm/templates/configmap.yaml, for example...
- export rabbitHost="{{ .Values.sgildea.rabbit.host }}"
- initEnvironment is imported by
- volumeMounts
- initContainer has an envsubst command like sed on steroids
- bash
- -c
- envsubst < /directory/file.properties > /dir/file.properties
- Ansible is the "configure the vm and install extra packages"
- Packer is "run the virtualization and initial bootstrapping before handing over to ansible"
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