helm upgrade rancher server from v2.7.5 to v2.7.8 in kubernetes【helm 升级 rancher 】
注意：如果你是在vcenter 的虚拟机测试该应用，记得给当前版本做好快照，便于反复练习。通过user demo 登陆界面创建的 pod 实例仍正常可以获取状态。查看升级前创建的 user 是否丢失。查看 rancher 镜像版本。拉取公网镜像推送到私有仓库。
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1. 预备条件
注意：如果你是在vcenter 的虚拟机测试该应用，记得给当前版本做好快照，便于反复练习。
2. 目标
- rancher v2.7.5 升级 v2.7.8
当前集群 状态
$ helm ls -n cattle-system
NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION
rancher cattle-system 1 2023-12-12 15:15:55.470319744 +0800 CST deployed rancher-2.7.5 v2.7.5
rancher-webhook cattle-system 1 2023-12-12 07:23:47.884505024 +0000 UTC deployed rancher-webhook-2.0.5+up0.3.5 0.3.5
$ kubectl get pod -A
NAMESPACE NAME READY STATUS RESTARTS AGE
cattle-fleet-local-system fleet-agent-fbcbb8456-sfk5z 1/1 Running 0 2d16h
cattle-fleet-system fleet-controller-748ff89bfc-n8lct 1/1 Running 2 (2d16h ago) 2d19h
cattle-fleet-system gitjob-7bd88ddd7d-dwl4z 1/1 Running 1 (2d16h ago) 2d19h
cattle-system rancher-bc4795d88-6dwmh 1/1 Running 1 (2d16h ago) 2d19h
cattle-system rancher-bc4795d88-9wcn7 1/1 Running 1 (2d16h ago) 2d19h
cattle-system rancher-bc4795d88-9xbsh 1/1 Running 2 (2d16h ago) 2d19h
cattle-system rancher-webhook-7f6b5f4dd6-2jv2f 1/1 Running 1 (2d16h ago) 2d19h
demo nginx 1/1 Running 1 (2d16h ago) 2d16h
kube-system cloud-controller-manager-rancher02 1/1 Running 7 (2d16h ago) 2d23h
kube-system etcd-rancher02 1/1 Running 2 2d23h
kube-system helm-install-rke2-canal-wrsjx 0/1 Completed 0 2d23h
kube-system helm-install-rke2-coredns-nh95s 0/1 Completed 0 2d23h
kube-system helm-install-rke2-ingress-nginx-h4p5q 0/1 Completed 0 2d23h
kube-system helm-install-rke2-metrics-server-jg5fk 0/1 Completed 0 2d23h
kube-system helm-install-rke2-snapshot-controller-crd-49t77 0/1 Completed 0 2d23h
kube-system helm-install-rke2-snapshot-controller-tkmjc 0/1 Completed 0 2d23h
kube-system helm-install-rke2-snapshot-validation-webhook-fnlc2 0/1 Completed 0 2d23h
kube-system kube-apiserver-rancher02 1/1 Running 6 2d23h
kube-system kube-controller-manager-rancher02 1/1 Running 7 (2d16h ago) 2d23h
kube-system kube-proxy-rancher02 1/1 Running 3 (2d16h ago) 2d16h
kube-system kube-scheduler-rancher02 1/1 Running 2 (2d16h ago) 2d23h
kube-system rke2-canal-bqx25 2/2 Running 4 (2d16h ago) 2d23h
kube-system rke2-coredns-rke2-coredns-565dfc7d75-6g9wm 1/1 Running 2 (2d16h ago) 2d23h
kube-system rke2-coredns-rke2-coredns-autoscaler-6c48c95bf9-28tz8 1/1 Running 2 (2d16h ago) 2d23h
kube-system rke2-ingress-nginx-controller-4xhm8 1/1 Running 2 (2d16h ago) 2d23h
kube-system rke2-metrics-server-c9c78bd66-rjwn7 1/1 Running 2 (2d16h ago) 2d23h
kube-system rke2-snapshot-controller-6f7bbb497d-wft92 1/1 Running 2 (2d16h ago) 2d23h
kube-system rke2-snapshot-validation-webhook-65b5675d5c-2dckg 1/1 Running 2 (2d16h ago) 2d23h
3. 下载介质
- 下载 稳定charts 指定版本，请参考：https://artifacthub.io/packages/helm/rancher-stable/rancher/2.7.9
- 下载最新 charts 指定版本，请参考：https://artifacthub.io/packages/helm/rancher-latest/rancher/
helm repo add rancher-latest https://releases.rancher.com/server-charts/latest
helm repo update
helm fetch rancher-latest/rancher --version=v2.7.8
4. 镜像入库
$ ls
images_list.txt images.sh
$ cat images_list.txt
docker.io/rancher/rancher:v2.7.8
docker.io/rancher/fleet-agent:v0.8.0
docker.io/rancher/fleet:v0.8.0
docker.io/rancher/gitjob:v0.1.76
docker.io/rancher/rancher-webhook:v0.3.6
docker.io/rancher/shell:v0.1.21
docker.io/rancher/mirrored-cluster-api-controller:v1.4.4
docker.io/rancher/kubectl:v1.20.2
$ cat images.sh
#!/bin/bash
#私有仓库
registry_name='harbor.fumai02.com'
BASE_DIR="$( dirname "$( readlink -f "${0}" )" )"
#项目名
project='rancher'
images_pull() {
while read -r line
do
sudo docker pull $line
done < images_list.txt
}
images_push() {
while read -r line
do
image_repo=`echo $line | awk -F '/' '{print $1}'`
image_name=`echo $line | awk -F '/' '{print $NF}' | awk -F ':' '{print $1}'`
image_tag=`echo $line | awk -F '/' '{print $NF}' | awk -F ':' '{print $2}'`
sudo docker tag $line ${registry_name}/${project}/${image_name}:${image_tag}
sudo docker push ${registry_name}/${project}/${image_name}:${image_tag}
done < images_list.txt
}
images_pull
images_push
拉取公网镜像推送到私有仓库
$ sh images.sh
5. 升级 rancher
使用以下命令创建 rancher：
helm upgrade rancher ./rancher-2.7.8.tgz \
--namespace cattle-system \
--set hostname=rancher02.ghostwritten.com \
--set rancherImage=harbor.fumai02.com/rancher/rancher \
--set ingress.tls.source=secret \
--set privateCA=true \
--set systemDefaultRegistry=harbor.fumai02.com \
--set useBundledSystemChart=true
输出：
Release "rancher" has been upgraded. Happy Helming!
NAME: rancher
LAST DEPLOYED: Fri Dec 15 15:27:55 2023
NAMESPACE: cattle-system
STATUS: deployed
REVISION: 3
TEST SUITE: None
NOTES:
Rancher Server has been installed.
NOTE: Rancher may take several minutes to fully initialize. Please standby while Certificates are being issued, Containers are started and the Ingress rule comes up.
Check out our docs at https://rancher.com/docs/
If you provided your own bootstrap password during installation, browse to https://rancher02.ghostwritten.com to get started.
If this is the first time you installed Rancher, get started by running this command and clicking the URL it generates:
echo https://rancher02.ghostwritten.com/dashboard/?setup=$(kubectl get secret --namespace cattle-system bootstrap-secret -o go-template='{{.data.bootstrapPassword|base64decode}}')
To get just the bootstrap password on its own, run:
kubectl get secret --namespace cattle-system bootstrap-secret -o go-template='{{.data.bootstrapPassword|base64decode}}{{ "\n" }}'
Happy Containering!
6. 检查测试
升级后效果
$ helm ls -n cattle-system
NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION
rancher cattle-system 1 2023-10-26 07:31:49.883540457 +0800 CST deployed rancher-2.7.8 v2.7.8
rancher-webhook cattle-system 1 2023-10-25 23:46:00.925115778 +0000 UTC deployed rancher-webhook-2.0.6+up0.3.6 0.3.6
$ kubectl get pod -A
NAMESPACE NAME READY STATUS RESTARTS AGE
cattle-fleet-local-system fleet-agent-74466cd6dc-xc6jp 1/1 Running 0 38m
cattle-fleet-system fleet-controller-5989b98fc8-h6m57 1/1 Running 0 40m
cattle-fleet-system gitjob-d8f7cc69b-jvjh6 1/1 Running 0 40m
cattle-provisioning-capi-system capi-controller-manager-6c4d64c64-wbgf7 1/1 Running 0 38m
cattle-system helm-operation-bzzr7 0/2 Completed 0 41m
cattle-system helm-operation-pm6w8 0/2 Completed 0 30m
cattle-system helm-operation-qgs7j 0/2 Completed 0 39m
cattle-system helm-operation-sfxlc 0/2 Completed 0 42m
cattle-system rancher-7f87fb778f-ggh5q 1/1 Running 0 51m
cattle-system rancher-7f87fb778f-hmlxq 1/1 Running 0 46m
cattle-system rancher-7f87fb778f-vvzl6 1/1 Running 0 51m
cattle-system rancher-webhook-7f4c7c4c4b-f4ddl 1/1 Running 0 39m
demo nginx 1/1 Running 1 (2d22h ago) 2d22h
kube-system cloud-controller-manager-rancher02 1/1 Running 7 (2d22h ago) 3d5h
kube-system etcd-rancher02 1/1 Running 2 3d4h
kube-system helm-install-rke2-canal-wrsjx 0/1 Completed 0 3d5h
kube-system helm-install-rke2-coredns-nh95s 0/1 Completed 0 3d5h
kube-system helm-install-rke2-ingress-nginx-h4p5q 0/1 Completed 0 3d5h
kube-system helm-install-rke2-metrics-server-jg5fk 0/1 Completed 0 3d5h
kube-system helm-install-rke2-snapshot-controller-crd-49t77 0/1 Completed 0 3d5h
kube-system helm-install-rke2-snapshot-controller-tkmjc 0/1 Completed 0 3d5h
kube-system helm-install-rke2-snapshot-validation-webhook-fnlc2 0/1 Completed 0 3d5h
kube-system kube-apiserver-rancher02 1/1 Running 6 3d4h
kube-system kube-controller-manager-rancher02 1/1 Running 7 (2d22h ago) 3d5h
kube-system kube-proxy-rancher02 1/1 Running 3 (2d22h ago) 2d22h
kube-system kube-scheduler-rancher02 1/1 Running 2 (2d22h ago) 3d5h
kube-system rke2-canal-bqx25 2/2 Running 4 (2d22h ago) 3d4h
kube-system rke2-coredns-rke2-coredns-565dfc7d75-6g9wm 1/1 Running 2 (2d22h ago) 3d4h
kube-system rke2-coredns-rke2-coredns-autoscaler-6c48c95bf9-28tz8 1/1 Running 2 (2d22h ago) 3d4h
kube-system rke2-ingress-nginx-controller-4xhm8 1/1 Running 2 (2d22h ago) 3d4h
kube-system rke2-metrics-server-c9c78bd66-rjwn7 1/1 Running 2 (2d22h ago) 3d4h
kube-system rke2-snapshot-controller-6f7bbb497d-wft92 1/1 Running 2 (2d22h ago) 3d4h
kube-system rke2-snapshot-validation-webhook-65b5675d5c-2dckg 1/1 Running 2 (2d22h ago) 3d4h
查看 rancher 镜像版本
$ kubectl get pod -n cattle-system -oyaml rancher-7f87fb778f-ggh5q |grep image
image: harbor.fumai02.com/rancher/rancher:v2.7.8
界面访问
查看升级前创建的 user 是否丢失
通过user demo 登陆界面创建的 pod 实例仍正常可以获取状态
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