Kubernetes konteyner mimarisindeki uygulamaların devreye alınmasını, ölçeklenmesini ve izlenmesini otomatikleştiren bir açık kaynak çözümüdür.
Konteyner, temelindeki altyapıdan ayrı bir yazılımdır. Konteynerlerle, işletim sistemi seviyesine kadar her şey sanallaştırılır. Bu da bir uygulamanın, nerede çalışırsa çalışsın, aynı şekilde işlev göstereceği anlamına gelir.
Günümüzde çoğu konteyner bir Kubernetes platformunda çalışır. Kuruluşa göre: “Kubernetes konteyner merkezli bir yönetim ortamı sağlar. Kullanıcı iş yükleri adına bilgi işlem, ağ ve depolama altyapısını düzenler…ve altyapı sağlayıcıları genelinde taşınabilirlik sağlar.”
Kubernetes Resmi Web Adresi
Eğer Kubernetes Cluster kurulumu ile ilgileniyorsanız daha önceki yazıma bu bağlantıdan ulaşabilirsiniz. Kubernetes Cheat Sheet komutlarına aşağıdan ulaşabilirsiniz.”
Object Oluşturma KomutlarıName Command Create resource kubectl apply -f ./<file_name>.yaml Create from multiple files kubectl apply -f ./<file_name_1>.yaml -f ./<file_name_2>.yaml Create all files in directory kubectl apply -f ./<directory_name> Create from url kubectl apply -f https://<url> Create pod kubectl run <pod_name> –image <image_name> Create pod, then expose it as service kubectl run <pod_name> –image <image_name> –port <port> –expose Create pod yaml file kubectl run <pod_name> –image image_name –dryrun=client -o yaml > <file_name>.yaml Create deployment kubectl create deployment <deployment_name> –image <image_name> Create deployment yaml file kubectl create deployment <deployment_name> –image <image_name> –dry-run=client -o yaml > <file_name>.yaml Create service kubectl create service <service-type> <service_name> –tcp=<port:target_port> Create service yaml file kubectl create service <service-type> <service_name> –tcp=<port:target_port> –dryrun=client -o yaml > <file_name>.yaml Expose service from pod/deployment kubectl expose deployment <pod/deployment_name> -type=<service-type> –port <port> –target-port <target_port> Create config map from key-value kubectl create configmap <configmap_name> –fromliteral=<key>:<value> –from-literal=<key>:<value> Create config map from file kubectl create configmap <configmap_name> –fromfile=<file_name> Create config map from env file kubectl create configmap <configmap_name> –from-envfile=<file_name> Create secret from keyvalue kubectl create secret generic <secret_name> –fromliteral=<key>:<value> –from-literal=<key>:<value> Create secret from file kubectl create secret generic <secret_name> –fromfile=<file_name> Create job kubectl create job <job_name> –image=<image_name> Create job from cronjob kubectl create job <job_name> — from=cronjob/<cronjob-name> Create cronjob kubectl create cronjob –image=<image_name> -schedule='<cron-syntax>’ — <command> <args>
Monitoring Komutları Name Command Get node cpu and memory utilization kubectl top node <node_name> Get pod cpu and memory utilization kubectl top pods <pod_name>
Node Komutları Name Command Describe node kubectl describe node <node_name> Get node in yaml kubectl get node <node_name> -o yaml Get node kubectl get node <node_name> Drain node kubectl drain node <node_name> Cordon node kubectl cordon node <node_name> Uncordon node kubectl uncordon node <node_name>
Pod Komutları Name Command Get pod kubectl get pod <pod_name> Get pod in yaml kubectl get pod <pod_name> -o yaml Get pod wide information kubectl get pod <pod_name> -o wide Get pod with watch kubectl get pod <pod_name> -w Edit pod kubectl edit pod <pod_name> Describe pod kubectl describe pod <pod_name> Delete pod kubectl delete pod <pod_name> Log pod kubectl logs pod <pod_name> Tail -f pod kubectl logs pod -f <pod_name> Execute into pod kubectl exec -it pod <pod_name> /bin/bash Running Temporary Image kubectl run <pod_name> –image=curlimages/curl –rm -it -restart=Never — curl <destination>
Deployment Komutları Name Command Get deployment kubectl get deployment <deployment_name> Get deployment in yaml kubectl get deployment <deployment_name> -o yaml Get deployment wide information kubectl get deployment <deployment_name> -o wide Edit deployment kubectl edit deployment <deployment_name> Describe deployment kubectl describe deployment <deployment_name> Delete deployment kubectl delete deployment <deployment_name> Log deployment kubectl logs deployment/deployment_name -f Update image kubectl set image deployment <deployment_name> <container_name>=<new_image_name> Scale deployment with replicas kubectl scale deployment <deployment_name> –replicas <replicas>
Service Komutları Name Command Get service kubectl get service <service> Get service in yaml kubectl get service <service> -o yaml Get service wide information kubectl get service <service> -o wide Edit service kubectl edit service <service> Describe service kubectl describe service <service> Delete service kubectl delete service <service>
Endpoints Komutları Name Command Get endpoints kubectl get endpoints <endpoints_name>
Ingress Komutları Name Command Get ingress kubectl get ingress Get ingress in yaml kubectl get ingress -o yaml Get ingress wide information kubectl get ingress -o wide Edit ingress kubectl edit ingress <ingress_name> Describe ingress kubectl describe ingress <ingress_name> Delete ingress kubectl delete ingress <ingress_name>
DaemonSet Komutları Name Command Get daemonset kubectl get daemonset <daemonset_name> Get daemonset in yaml kubectl get daemonset <daemonset_name> -o yaml Edit daemonset kubectl edit daemonset <daemonset_name> Describe daemonset kubectl describe daemonset <daemonset_name> Delete daemonset kubectl delete deployment <daemonset_name>
StatefulSet Komutları Name Command Get statefulset kubectl get statefulset <statefulset_name> Get statefulset in yaml kubectl get statefulset <statefulset_name> -o yaml Edit statefulset kubectl edit statefulset <statefulset_name> Describe statefulset kubectl describe statefulset <statefulset_name> Delete statefuleset kubectl delete statefulset <statefulset_name>
ConfigMaps Komutları Name Command Get configmap kubectl get configmap <configmap_name> Get configmap in yaml kubectl get configmap <configmap_name> -o yaml Edit configmap kubectl edit configmap <configmap_name> Describe configmap kubectl describe configmap <configmap_name> Delete configmap kubectl delete configmap <configmap_name>
Secret Komutları Name Command Get secret kubectl get secret <secret_name> Get secret in yaml kubectl get secret <secret_name> -o yaml Edit secret kubectl edit secret <secret_name> Describe secret kubectl describe secret <secret_name> Delete secret kubectl delete secret <secret_name>
Rollout Komutları Name Command Restart deployment kubectl rollout restart deployment <deployment_name> Undo deployment with the latest revision kubectl rollout undo deployment <deployment_name> Undo deployment with specified revision kubectl rollout undo deployment <deployment_name> –torevision <revision_number> Get all revisions of deployment kubectl rollout history deployment <deployment_name> Get specified revision of deployment kubectl rollout history deployment <deployment_name> -revision=<revision_number>
Job Komutları Name Command Get job kubectl get job <job_name> Get job in yaml kubectl get job <job_name> -o yaml Edit job in yaml kubectl edit job <job_name> Describe job kubectl describe job <job_name> Delete job kubectl delete job <job_name>
Cronjob Komutları Name Command Get cronjob kubectl get cronjob cronjob_name Get cronjob in yaml kubectl get cronjob <cronjob_name> -o yaml Edit cronjob kubectl edit cronjob <cronjob_name> Describe cronjob kubectl describe cronjob <cronjob_name> Delete cronjob kubectl delete cronjob <cronjob_name>
Network Policy Komutları Name Command Get networkpolicy kubectl get networkpolicy <networkpolicy_name> Get networkpolicy in yaml kubectl get networkpolicy <networkpolicy_name> o yaml Get networkpolicy wide information kubectl get networkpolicy <networkpolicy_name> o wide Edit networkpolicy kubectl edit networkpolicy <networkpolicy_name> Describe networkpolicy kubectl describe networkpolicy <networkpolicy_name> Delete networkpolicy kubectl delete networkpolicy <networkpolicy_name>
Labels and Selectors Komutları Name Command Show labels of node,pod and deployment kubectl get <node/pod/deployment> –showlabels Attach labels to <node/pod/deployment> kubectl label <node/pod/deployment> <pod_name> <key>=<value> Remove labels from <node/pod/deployment> kubectl label <node/pod/deployment> <pod_name> <key>- Select node,pod and deployment by using labels kubectl get <node/pod/deployment> -l <key>=<value>
