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How to upgrade Rancher 2.4, created by quickstart on Digital Ocean #160

Closed h0jeZvgoxFepBQ2C closed 2 years ago

h0jeZvgoxFepBQ2C commented 3 years ago

Hi,

some weeks ago we created our rancher installation on Digital Ocean by following these steps: https://rancher.com/docs/rancher/v2.x/en/quick-start-guide/deployment/digital-ocean-qs/

Now we want to upgrade rancher, but cannot figure how to do it properly... When we follow: https://rancher.com/docs/rancher/v2.x/en/installation/other-installation-methods/single-node-docker/single-node-upgrades/ we cannot find any rancher/rancher images on our server, but many other server components - so we don't know how to backup our old installation?

When I run docker ps, I get following:

root@quickstart-rancher-server:~# docker ps
CONTAINER ID   IMAGE                                  COMMAND                  CREATED        STATUS        PORTS     NAMES
544c00cb4b57   rancher/pause:3.2                      "/pause"                 16 hours ago   Up 16 hours             k8s_POD_metrics-server-786cd99c65-tc6h2_kube-system_928b179a-5c99-4891-bbf2-91f7419c8762_0
13874a0fdfae   6c3b998b4acf                           "run.sh"                 40 hours ago   Up 40 hours             k8s_agent_cattle-node-agent-hbwf6_cattle-system_278d66ad-eecf-4f22-ad1d-ec38cb68ab6a_9
1b3b2521d6b6   6c3b998b4acf                           "run.sh"                 40 hours ago   Up 40 hours             k8s_cluster-register_cattle-cluster-agent-dd78489f5-8ts7l_cattle-system_bc1edb78-d112-4d73-9c51-8b3e11a5c69f_10
ee46c2ab70eb   cd72fe6cf6de                           "/app/cmd/cainjector…"   40 hours ago   Up 40 hours             k8s_cert-manager_cert-manager-cainjector-6d9776489b-ktfbp_cert-manager_dac0c6c2-c943-4b7a-9a15-6b484c5b790c_5
710ea27c7a59   3129a2ca29d7                           "/configmap-reload -…"   40 hours ago   Up 40 hours             k8s_config-reloader_alertmanager-cluster-alerting-0_cattle-prometheus_1994bb7d-a568-416b-9229-003915af3856_3
1cf1900c521d   0881eb8f169f                           "/bin/alertmanager -…"   40 hours ago   Up 40 hours             k8s_alertmanager_alertmanager-cluster-alerting-0_cattle-prometheus_1994bb7d-a568-416b-9229-003915af3856_3
2fbd4e01de09   rancher/pause:3.2                      "/pause"                 40 hours ago   Up 40 hours             k8s_POD_cert-manager-cainjector-6d9776489b-ktfbp_cert-manager_dac0c6c2-c943-4b7a-9a15-6b484c5b790c_3
2de48ffbbcf0   94634a50f6be                           "/bin/operator --kub…"   40 hours ago   Up 40 hours             k8s_prometheus-operator_prometheus-operator-monitoring-operator-5945986778-w9ql6_cattle-prometheus_d43e737a-0fa2-498d-833e-024ff2dde899_3
dab4649ffcb6   rancher/pause:3.2                      "/pause"                 40 hours ago   Up 40 hours             k8s_POD_alertmanager-cluster-alerting-0_cattle-prometheus_1994bb7d-a568-416b-9229-003915af3856_3
3ca174bef91d   rancher/pause:3.2                      "/pause"                 40 hours ago   Up 40 hours             k8s_POD_prometheus-operator-monitoring-operator-5945986778-w9ql6_cattle-prometheus_d43e737a-0fa2-498d-833e-024ff2dde899_3
5757b339f578   8524c0d7aecc                           "entrypoint.sh --htt…"   40 hours ago   Up 40 hours             k8s_rancher_rancher-6b78b4b7fd-vf79w_cattle-system_acf8ece1-00ec-4ed7-bba3-6e2cab12ff03_4
57607f97664b   rancher/pause:3.2                      "/pause"                 40 hours ago   Up 40 hours             k8s_POD_rancher-6b78b4b7fd-vf79w_cattle-system_acf8ece1-00ec-4ed7-bba3-6e2cab12ff03_3
ff6101f011e9   8524c0d7aecc                           "entrypoint.sh --htt…"   40 hours ago   Up 40 hours             k8s_rancher_rancher-6b78b4b7fd-fpr28_cattle-system_b5c139c3-5965-4a7d-af7f-9c111cd8987d_4
f29311632cc7   rancher/pause:3.2                      "/pause"                 40 hours ago   Up 40 hours             k8s_POD_cattle-cluster-agent-dd78489f5-8ts7l_cattle-system_bc1edb78-d112-4d73-9c51-8b3e11a5c69f_3
b601715bede8   0bfefe9f649b                           "/opt/bin/flanneld -…"   40 hours ago   Up 40 hours             k8s_kube-flannel_canal-686xb_kube-system_893670dd-6a6d-45af-b085-593246a6324b_3
58d769045496   rancher/pause:3.2                      "/pause"                 40 hours ago   Up 40 hours             k8s_POD_rancher-6b78b4b7fd-fpr28_cattle-system_b5c139c3-5965-4a7d-af7f-9c111cd8987d_4
1ddd479162c4   8524c0d7aecc                           "entrypoint.sh --htt…"   40 hours ago   Up 40 hours             k8s_rancher_rancher-6b78b4b7fd-24ksk_cattle-system_2cb0d382-a54e-473f-83e0-c3f9dd1d5d21_3
8cd8e3868494   0f351f210d5e                           "start_runit"            40 hours ago   Up 40 hours             k8s_calico-node_canal-686xb_kube-system_893670dd-6a6d-45af-b085-593246a6324b_3
a40c8e4f064f   rancher/pause:3.2                      "/pause"                 40 hours ago   Up 40 hours             k8s_POD_rancher-6b78b4b7fd-24ksk_cattle-system_2cb0d382-a54e-473f-83e0-c3f9dd1d5d21_4
9dab9da0aca9   b5af743e5984                           "/server"                40 hours ago   Up 40 hours             k8s_default-http-backend_default-http-backend-65dd5949d9-tvd2n_ingress-nginx_15e0d0d6-1636-4e66-ace1-71df6e77edf3_1
9f7bf296a594   4f1064cf7caf                           "/cluster-proportion…"   40 hours ago   Up 40 hours             k8s_autoscaler_coredns-autoscaler-79599b9dc6-ptxsv_kube-system_97deb9ae-5c7d-4571-aba1-0c799452dd4c_1
772e90ff9d22   bfe3a36ebd25                           "/coredns -conf /etc…"   40 hours ago   Up 40 hours             k8s_coredns_coredns-6f85d5fb88-nfd82_kube-system_69905ba3-4f14-4269-8f66-31a29697f80e_1
f063df235cbe   95aca1ef82b8                           "/app/cmd/webhook/we…"   40 hours ago   Up 40 hours             k8s_cert-manager_cert-manager-webhook-6d6d6f9-82fwl_cert-manager_5602b1bd-e34c-4ae8-9212-a6d79e8b25e3_3
8f3ee34f961d   7f4f8cd3e8da                           "/app/cmd/controller…"   40 hours ago   Up 40 hours             k8s_cert-manager_cert-manager-d7d8fb5c9-kvwqh_cert-manager_06569895-a76e-46e3-895a-515e4a1d2f30_5
f1ced412e7d0   rancher/pause:3.2                      "/pause"                 40 hours ago   Up 40 hours             k8s_POD_coredns-autoscaler-79599b9dc6-ptxsv_kube-system_97deb9ae-5c7d-4571-aba1-0c799452dd4c_1
70023081bcc2   03feeb39a75a                           "/usr/bin/kube-contr…"   40 hours ago   Up 40 hours             k8s_calico-kube-controllers_calico-kube-controllers-649b7b795b-cz44h_kube-system_2b3f9f8b-1b83-47f2-ad69-9c65213a6067_3
149a39f593a0   rancher/pause:3.2                      "/pause"                 40 hours ago   Up 40 hours             k8s_POD_coredns-6f85d5fb88-nfd82_kube-system_69905ba3-4f14-4269-8f66-31a29697f80e_1
3212637e4c16   rancher/pause:3.2                      "/pause"                 40 hours ago   Up 40 hours             k8s_POD_cert-manager-webhook-6d6d6f9-82fwl_cert-manager_5602b1bd-e34c-4ae8-9212-a6d79e8b25e3_3
e4e1ed885cc7   rancher/pause:3.2                      "/pause"                 40 hours ago   Up 40 hours             k8s_POD_cattle-node-agent-hbwf6_cattle-system_278d66ad-eecf-4f22-ad1d-ec38cb68ab6a_3
b464b2acd66b   rancher/pause:3.2                      "/pause"                 40 hours ago   Up 40 hours             k8s_POD_cert-manager-d7d8fb5c9-kvwqh_cert-manager_06569895-a76e-46e3-895a-515e4a1d2f30_3
47243656e589   rancher/pause:3.2                      "/pause"                 40 hours ago   Up 40 hours             k8s_POD_calico-kube-controllers-649b7b795b-cz44h_kube-system_2b3f9f8b-1b83-47f2-ad69-9c65213a6067_4
3601a19ced30   1f0ca6d99110                           "/usr/bin/dumb-init …"   40 hours ago   Up 40 hours             k8s_nginx-ingress-controller_nginx-ingress-controller-2hnnk_ingress-nginx_b878997a-a0ad-4a04-8218-6aaedce1e7fb_3
981f7f0b79c7   rancher/pause:3.2                      "/pause"                 40 hours ago   Up 40 hours             k8s_POD_default-http-backend-65dd5949d9-tvd2n_ingress-nginx_15e0d0d6-1636-4e66-ace1-71df6e77edf3_1
9d36e5bdcac7   rancher/pause:3.2                      "/pause"                 40 hours ago   Up 40 hours             k8s_POD_canal-686xb_kube-system_893670dd-6a6d-45af-b085-593246a6324b_3
e0b84a14767a   rancher/pause:3.2                      "/pause"                 40 hours ago   Up 40 hours             k8s_POD_nginx-ingress-controller-2hnnk_ingress-nginx_b878997a-a0ad-4a04-8218-6aaedce1e7fb_3
bde2d3b1ca15   rancher/hyperkube:v1.19.3-rancher1     "/opt/rke-tools/entr…"   2 months ago   Up 40 hours             kube-proxy
e310c30f6920   rancher/hyperkube:v1.19.3-rancher1     "/opt/rke-tools/entr…"   2 months ago   Up 40 hours             kubelet
0b01640dd217   rancher/hyperkube:v1.19.3-rancher1     "/opt/rke-tools/entr…"   2 months ago   Up 40 hours             kube-scheduler
de6748d3460b   rancher/hyperkube:v1.19.3-rancher1     "/opt/rke-tools/entr…"   2 months ago   Up 40 hours             kube-controller-manager
91957db74850   rancher/hyperkube:v1.19.3-rancher1     "/opt/rke-tools/entr…"   2 months ago   Up 40 hours             kube-apiserver
ef33d1dfa453   rancher/rke-tools:v0.1.65              "/docker-entrypoint.…"   2 months ago   Up 40 hours             etcd-rolling-snapshots
b16629017fa9   rancher/coreos-etcd:v3.4.13-rancher1   "/usr/local/bin/etcd…"   2 months ago   Up 40 hours             etcd

Any hints appreciated!

bashofmann commented 3 years ago

These terraform quickstart modules install Rancher into a single node RKE Kubernetes cluster. So to upgrade you have to follow: https://rancher.com/docs/rancher/v2.x/en/installation/install-rancher-on-k8s/upgrades/. Of course you can also upgrade Rancher with terraform directly by setting rancher_version to the desired version.

Please not, that these quickstarts are meant for evaluation purposes only. They are not highly available and should not be used to run Rancher in production.

h0jeZvgoxFepBQ2C commented 3 years ago

Hm I see.. We use it now for production and are quite new to kubernetes, so right now we dont know the best way on how to move to a stable production environment? Do you have a hint? Should we just install rancher 2.5 into our cluster directly and use it from there and turn off our old rancher server?

Could you also tell me which commands should be used for the terraform upgrade?

I also saw the RKE upgrade guide, but when we execute rke we get "command not found" :/

bashofmann commented 2 years ago

In case this is till relevant: with terraform, you can upgrade Rancher or Kubernetes versions by changing the versions in the tfvars of the module.