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Merge pull request #471 from OrangeBao/feature_auto_join
feat: auto join/unjoin node
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,137 @@ | ||
| #!/usr/bin/env bash | ||
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| SCRIPT_VERSION=0.0.1 | ||
| # save tmp file | ||
| PATH_FILE_TMP=/apps/conf/kosmos/tmp | ||
| ################################################### | ||
| # path for kubeadm | ||
| PATH_KUBEADM=/usr/bin/kubeadm | ||
| ################################################## | ||
| # path for kubernetes | ||
| PATH_KUBERNETES=/etc/kubernetes/ | ||
| PATH_KUBERNETES_PKI="$PATH_KUBERNETES/pki" | ||
| # scpKCCmd.name | ||
| KUBELET_KUBE_CONFIG_NAME=kubelet.conf | ||
| ################################################## | ||
| # path for kubelet | ||
| PATH_KUBELET_LIB=/var/lib/kubelet | ||
| # scpKubeletConfigCmd.name | ||
| KUBELET_CONFIG_NAME=config.yaml | ||
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| # args | ||
| DNS_ADDRESS=${2:-10.237.0.10} | ||
| LOG_NAME=${2:-kubelet} | ||
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| function unjoin() { | ||
| # before unjoin, you need delete node by kubectl | ||
| echo "exec(1/1): kubeadm reset...." | ||
| echo "y" | ${PATH_KUBEADM} reset | ||
| if [ $? -ne 0 ]; then | ||
| exit 1 | ||
| fi | ||
| } | ||
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| # before join, you need upload ca.crt and kubeconfig to tmp dir!!! | ||
| function join() { | ||
| echo "exec(1/7): stop containerd...." | ||
| systemctl stop containerd | ||
| if [ $? -ne 0 ]; then | ||
| exit 1 | ||
| fi | ||
| echo "exec(2/7): copy ca.crt...." | ||
| cp "$PATH_FILE_TMP/ca.crt" "$PATH_KUBERNETES_PKI/ca.crt" | ||
| if [ $? -ne 0 ]; then | ||
| exit 1 | ||
| fi | ||
| echo "exec(3/7): copy kubeconfig...." | ||
| cp "$PATH_FILE_TMP/$KUBELET_KUBE_CONFIG_NAME" "$PATH_KUBERNETES/$KUBELET_KUBE_CONFIG_NAME" | ||
| if [ $? -ne 0 ]; then | ||
| exit 1 | ||
| fi | ||
| echo "exec(4/7): set core dns address...." | ||
| sed -e "s|__DNS_ADDRESS__|$DNS_ADDRESS|g" -e "w ${PATH_KUBELET_LIB}/${KUBELET_CONFIG_NAME}" "$PATH_FILE_TMP"/"$KUBELET_CONFIG_NAME" | ||
| if [ $? -ne 0 ]; then | ||
| exit 1 | ||
| fi | ||
| echo "exec(5/7): copy kubeadm-flags.env...." | ||
| cp "$PATH_FILE_TMP/kubeadm-flags.env" "$PATH_KUBELET_LIB/kubeadm-flags.env" | ||
| if [ $? -ne 0 ]; then | ||
| exit 1 | ||
| fi | ||
| echo "exec(6/7): start containerd" | ||
| systemctl start containerd | ||
| if [ $? -ne 0 ]; then | ||
| exit 1 | ||
| fi | ||
| echo "exec(7/7): start kubelet...." | ||
| systemctl start kubelet | ||
| if [ $? -ne 0 ]; then | ||
| exit 1 | ||
| fi | ||
| } | ||
|
|
||
| function health() { | ||
| result=`systemctl is-active containerd` | ||
| if [[ $result != "active" ]]; then | ||
| echo "health(1/2): containerd is inactive" | ||
| exit 1 | ||
| else | ||
| echo "health(1/2): containerd is active" | ||
| fi | ||
|
|
||
| result=`systemctl is-active kubelet` | ||
| if [[ $result != "active" ]]; then | ||
| echo "health(2/2): kubelet is inactive" | ||
| exit 1 | ||
| else | ||
| echo "health(2/2): containerd is active" | ||
| fi | ||
| } | ||
|
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||
| function log() { | ||
| systemctl status $LOG_NAME | ||
| } | ||
|
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||
| # check the environments | ||
| function check() { | ||
| if [ ! -d "$PATH_FILE_TMP" ]; then | ||
| echo "check(1/2): try to create $PATH_FILE_TMP" | ||
| mkdir -p "$PATH_FILE_TMP" | ||
| if [ $? -ne 0 ]; then | ||
| exit 1 | ||
| fi | ||
| echo "check(2/2): copy kubeadm-flags.env to create $PATH_FILE_TMP" | ||
| echo "y" | cp "$PATH_KUBELET_LIB/kubeadm-flags.env" "$PATH_FILE_TMP/" | ||
| fi | ||
| echo "environments is ok" | ||
| } | ||
|
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| function version() { | ||
| echo "$SCRIPT_VERSION" | ||
| } | ||
|
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| # See how we were called. | ||
| case "$1" in | ||
| unjoin) | ||
| unjoin | ||
| ;; | ||
| join) | ||
| join | ||
| ;; | ||
| health) | ||
| health | ||
| ;; | ||
| check) | ||
| check | ||
| ;; | ||
| log) | ||
| log | ||
| ;; | ||
| version) | ||
| version | ||
| ;; | ||
| *) | ||
| echo $"usage: $0 unjoin|join|health|log|check|version" | ||
| exit 1 | ||
| esac |
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