init

1.k8s/README.md

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+# k8s кластер
+
+## Нужно
+
+1. rke - <https://github.com/rancher/rke/releases>
+2. k8s-lens - <https://docs.k8slens.dev>
+3. helm - <https://helm.sh/docs/intro/quickstart/>
+4. Три машины на ubuntu 22.04 + docker
+
+## Разворачиваем куб
+
+1. `rke up --ignore-docker-version`
+2. полученный конфиг импортируем в линзу
+3. в настройках подключаем метрики
+
+## Полезные команды
+
+```bash
+apt update && apt install -y mc htop zip wget curl git jq net-tools gnupg2 screen open-iscsi
+curl https://get.docker.com -o install.sh && sh install.sh
+```
+
+## Твики
+
+### is apparently in use by the system; will not make a filesystem here!
+
+* Create the default configuration file /etc/multipath.conf if not existed
+* Add the following line to blacklist section devnode "^sd[a-z0-9]+"
+
+```config
+blacklist {
+    devnode "^sd[a-z0-9]+"
+}
+```
+
+* Restart multipath service# systemctl restart multipathd.service
+* Verify that configuration is applied# multipath -t
+
+
+### Failed to allocate directory watch: Too many open files
+
+на всех нодах кластера:
+
+```bash
+sysctl fs.inotify.max_user_watches=65536
+sysctl fs.inotify.max_user_instances=8192
+sysctl net.ipv4.tcp_max_syn_backlog=100000
+sysctl net.core.somaxconn=100000
+sysctl net.ipv4.tcp_wmem='4096 12582912 16777216'
+sysctl net.ipv4.tcp_rmem='4096 12582912 16777216'
+sysctl net.ipv4.ip_local_port_range='10240 65535'
+```

1.k8s/cluster.yml

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+cluster_name: k8s-zalando
+kubernetes_version: "v1.28.10-rancher1-1"
+
+enable_cri_dockerd: true
+ignore_docker_version: true
+
+nodes:
+  - address: 192.168.23.101
+    hostname_override: node-01
+    user: root
+    labels:
+      location: pve1-nsk
+    role: [controlplane, worker, etcd]
+
+  - address: 192.168.23.102
+    hostname_override: node-02
+    user: root
+    labels:
+      location: pve1-nsk
+    role: [controlplane, worker, etcd]
+
+  - address: 192.168.23.103
+    hostname_override: node-03
+    user: root
+    labels:
+      location: pve1-nsk
+    role: [controlplane, worker, etcd]
+
+services:
+  etcd:
+    snapshot: true
+    creation: 6h
+    retention: 30h
+  kubelet:
+    extra_args:
+      max-pods: 350
+
+ingress:
+  provider: nginx
+  node_selector:
+    orc_ingress: yes
+
+monitoring:
+  provider: metrics-server
+  replicas: 0
+
+# authentication:
+#     strategy: x509
+#     sans:
+#       - "192.168.23.2"
+
+#dns:
+#  provider: coredns
+#  upstreamnameservers:
+#  - 8.8.8.8
+#  - 1.1.1.1