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tech:k8s:start
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tech:k8s:start [2019/01/24 00:30] rk4n3 |
tech:k8s:start [2019/11/03 22:02] (current) rk4n3 |
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| <typo fs:xx-large; fw:bold>Kubernetes Topics</typo> \\ | <typo fs:xx-large; fw:bold>Kubernetes Topics</typo> \\ | ||
| - | [[https://kubernetes.io/docs/home/?path=users&persona=app-developer&level=foundational|Documentation]] | + | [[https://kubernetes.io/docs/home/?path=users&persona=app-developer&level=foundational|Documentation]] \\ |
| + | ====== Resources ====== | ||
| + | ==== Quick Links ==== | ||
| + | * Dashboard: [[http://k8s:8080/api/v1/namespaces/kube-system/services/monitoring-grafana/proxy|(local cluster - k8s)]] | ||
| + | * Dashboard (proxied): | ||
| + | * Tunnel: ''ssh -L 18443:<DashboardIP>:443 k8s'' //(discover DashboardIP as in instructions below)// | ||
| + | * [[https://localhost:18443/api/v1/namespaces/kube-system/services/https:kubernetes-dashboard:/proxy/]] | ||
| ====== Installation & Configuration ====== | ====== Installation & Configuration ====== | ||
| **Ubuntu:**[[https://microk8s.io/#quick-start]]<code>snap install microk8s --classic</code> | **Ubuntu:**[[https://microk8s.io/#quick-start]]<code>snap install microk8s --classic</code> | ||
| Line 14: | Line 21: | ||
| * ''microk8s.disable ...'' | * ''microk8s.disable ...'' | ||
| **Tricks:** | **Tricks:** | ||
| + | * Shell in pod: | ||
| + | * ''kubectl get pods'' | ||
| + | * ''kubectl get pod garden-7dd9f6bc88-pp87l'' | ||
| + | * ''kubectl exec -it garden-7dd9f6bc88-pp87l -- /bin/bash'' \\ | ||
| + | * Discover dashboard IP:<code>microk8s.kubectl get all --all-namespaces |grep kubernetes-dashboard | grep ClusterIP</code> | ||
| + | * Discover dashboard token:<code> | ||
| + | microk8s.kubectl -n kube-system get secret | ||
| + | microk8s.kubectl -n kube-system describe secret default-token-{xxxxx} | ||
| + | </code> | ||
| * ''ln -s /snap/bin/microk8s.docker /usr/local/bin/docker'' | * ''ln -s /snap/bin/microk8s.docker /usr/local/bin/docker'' | ||
| * Install ''S2I'' from: [[https://github.com/openshift/source-to-image/releases]] | * Install ''S2I'' from: [[https://github.com/openshift/source-to-image/releases]] | ||
| + | * Build docker image elsewhere and save/load into local k8s: | ||
| + | * ''docker save mynewimage > mynewimage-docker.tar'' | ||
| + | * Transfer file to microk8s server | ||
| + | * ''microk8s.docker load < mynewimage-docker.tar'' | ||
| + | |||
| + | * Move a running container: | ||
| + | * First, commit a snapshot to a new image: ''docker commit //<containerId>// mynewimage'' | ||
| + | * Then, follow the load/save steps above | ||
tech/k8s/start.1548311457.txt.gz · Last modified: 2019/01/24 00:30 by rk4n3
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