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104 lines
2.7 KiB
Bash
104 lines
2.7 KiB
Bash
#!/usr/bin/env bash
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# vim:ts=4:sts=4:sw=4:et
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#
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# Author: Hari Sekhon
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# Date: 2019-07-28 14:56:41 +0100 (Sun, 28 Jul 2019)
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#
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# https://github.com/harisekhon/bash-tools
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#
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# License: see accompanying Hari Sekhon LICENSE file
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#
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# If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
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#
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# https://www.linkedin.com/in/harisekhon
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#
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# ============================================================================ #
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# K u b e r n e t e s
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# ============================================================================ #
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kubectl_opts="${KUBECTL_OPTS:-}"
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# set K8S_NAMESPACE in local .bashrc or similar files for environments where your ~/.kube/config
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# gets regenerated daily with certification authentication from a kerberos login script, which
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# resets the 'kcd bigdata' namespace change. This way you automatically send the right namespace every time
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if [ "${K8S_NAMESPACE:-}" ]; then
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kubectl_opts="-n $K8S_NAMESPACE"
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fi
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k(){
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# want opts auto split, do not quote $kubectl_opts
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# shellcheck disable=SC2086
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kubectl $kubectl_opts "$@"
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}
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# 'k8s-app' label is set by dashboard creation but who uses that
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k8s_get_pod_opts="-o wide -L app,env"
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# this is one of the most used things out there, even more than ping
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alias p="k get po \$k8s_get_pod_opts"
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alias wp=watchpods
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alias ke=kubeexec
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alias use="k config use-context"
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alias contexts="k config get-contexts"
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#alias context="k config current-context"
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context(){ k config current-context; }
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# contexts has this info and is more useful
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#alias clusters="k config get-clusters"
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alias kcd='kubectl config set-context $(kubectl config current-context) --namespace'
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alias menv='eval $(minikube docker-env)'
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get_pod(){
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local filter="${1:-.*}"
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# shellcheck disable=SC2086
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k get pods $k8s_get_pod_opts | grep "$filter" | head -n1
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}
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watchpods(){
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watch "
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echo 'Context: '
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echo
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kubectl config current-context
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echo
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echo
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echo 'Pods:'
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echo
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kubectl $kubectl_opts get pods $k8s_get_pod_opts 2>&1
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echo
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"
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}
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kdesc(){
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k describe "$@"
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}
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kdp(){
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kdesc pods "$@"
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}
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kdelp(){
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k delete pod "$@"
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}
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kubeexec(){
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kubectl exec -ti "$@" /bin/sh
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}
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k8s_get_token(){
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kubectl describe secret -n kube-system \
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"$(kubectl get secrets -n kube-system | grep default | cut -f1 -d ' ')" |
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grep '^token' |
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awk '{print $2}'
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}
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k8s_get_api(){
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local context
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local cluster
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context="$(context)"
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cluster="$(k config view -o jsonpath="{.contexts[?(@.name == \"$context\")].context.cluster}")"
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k config view -o jsonpath="{.clusters[?(@.name == \"$cluster\")].cluster.server}"
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echo
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}
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