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172
src/main/infra/init.cljs
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172
src/main/infra/init.cljs
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(ns infra.init
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(:require ["@pulumi/pulumi" :as pulumi]
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["@pulumi/hcloud" :as hcloud]
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["@pulumi/command/remote" :as remote]
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["@pulumi/command/local" :as local]
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["fs" :as fs]))
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(defn- setup-master-script []
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(str "# Create manifests dir\n"
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"mkdir -p /var/lib/rancher/k3s/server/manifests\n\n"
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"# Traefik NodePort config\n"
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"cat <<EOF > /var/lib/rancher/k3s/server/manifests/traefik-config.yaml\n"
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"apiVersion: helm.cattle.io/v1\n"
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"kind: HelmChartConfig\n"
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"metadata:\n"
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" name: traefik\n"
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" namespace: kube-system\n"
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"spec:\n"
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" valuesContent: |-\n"
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" service:\n"
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" spec:\n"
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" type: NodePort\n"
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" ports:\n"
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" web:\n"
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" nodePort: 30080\n"
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" websecure:\n"
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" nodePort: 30443\n"
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"EOF\n\n"))
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(defn- install-master-script [public-ip]
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(str "# Install k3s if not present\n"
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"if ! command -v k3s >/dev/null; then\n"
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" curl -sfL https://get.k3s.io | INSTALL_K3S_EXEC=\"--disable=traefik --flannel-backend=wireguard-native --node-external-ip=" public-ip "\" sh -\n"
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"fi\n\n"
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"# Wait for node readiness\n"
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"until sudo k3s kubectl get node >/dev/null 2>&1; do\n"
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" echo 'Waiting for master node...'\n"
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" sleep 5\n"
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"done\n"))
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(defn- install-worker-script [master-ip token]
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(str "#!/bin/bash\n"
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"exec > /root/k3s-install.log 2>&1\n"
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"set -x\n"
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"echo '--- Starting worker install ---'\n\n"
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"until ping -c1 " master-ip "; do\n"
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" echo 'Waiting for master...'\n"
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" sleep 2\n"
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"done\n\n"
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"WORKER_PUBLIC_IP=$(curl -s https://ifconfig.me/ip)\n"
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"echo \"Public IP: $WORKER_PUBLIC_IP\"\n\n"
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"if ! command -v k3s >/dev/null; then\n"
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" curl -sfL https://get.k3s.io | "
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"K3S_URL=https://" master-ip ":6443 "
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"K3S_TOKEN=\"" token "\" "
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"INSTALL_K3S_EXEC=\"--node-external-ip=$WORKER_PUBLIC_IP\" sh -\n"
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"fi\n\n"
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"echo '--- Finished worker install ---'\n"))
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(defn create-cluster [{:keys [pulumi-cfg]}]
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(let [ssh-key (.require pulumi-cfg "sshKeyName")
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personal-key (.require pulumi-cfg "sshPersonalKeyName")
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priv-key (.requireSecret pulumi-cfg "privateKeySsh")
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firewall (hcloud/Firewall.
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"k3s-firewall"
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(clj->js {:rules [{:direction "in" :protocol "tcp" :port "22" :sourceIps ["0.0.0.0/0" "::/0"]}
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{:direction "in" :protocol "tcp" :port "6443" :sourceIps ["0.0.0.0/0" "::/0"]}
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{:direction "in" :protocol "udp" :port "51820" :sourceIps ["0.0.0.0/0" "::/0"]}
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{:direction "in" :protocol "tcp" :port "80" :sourceIps ["0.0.0.0/0" "::/0"]}
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{:direction "in" :protocol "tcp" :port "443" :sourceIps ["0.0.0.0/0" "::/0"]}
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{:direction "in" :protocol "icmp" :sourceIps ["0.0.0.0/0" "::/0"]}]}))
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master (hcloud/Server.
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"k3s-master-de"
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(clj->js {:serverType "cx22"
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:image "ubuntu-22.04"
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:location "fsn1"
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:sshKeys [ssh-key personal-key]
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:firewallIds [(.-id firewall)]}))
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master-ip (.-ipv4Address master)
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master-conn (clj->js {:host master-ip
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:user "root"
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:privateKey priv-key})
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setup-master
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(remote/Command.
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"setup-master"
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(clj->js {:connection master-conn
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:create (.apply setup-master-script)})
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(clj->js {:dependsOn [master]}))
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install-master
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(remote/Command.
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"install-master"
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(clj->js {:connection master-conn
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:create (.apply master-ip install-master-script)})
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(clj->js {:dependsOn [setup-master]}))
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token-cmd
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(remote/Command.
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"get-token"
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(clj->js {:connection master-conn
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:create "sudo cat /var/lib/rancher/k3s/server/node-token"})
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(clj->js {:dependsOn [install-master]}))
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worker-script
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(.apply master-ip
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(fn [ip]
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(.apply (.-stdout token-cmd)
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(fn [token]
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(install-worker-script ip (.trim token))))))
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worker-de (hcloud/Server.
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"k3s-worker-de"
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(clj->js {:serverType "cx22"
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:image "ubuntu-22.04"
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:location "fsn1"
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:sshKeys [ssh-key personal-key]
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:userData worker-script
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:firewallIds [(.-id firewall)]}))
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worker-us (hcloud/Server.
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"k3s-worker-us"
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(clj->js {:serverType "cpx11"
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:image "ubuntu-22.04"
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:location "ash"
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:sshKeys [ssh-key personal-key]
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:userData worker-script
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:firewallIds [(.-id firewall)]}))
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kubeconfig-cmd
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(remote/Command.
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"get-kubeconfig"
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(clj->js {:connection master-conn
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:create (.apply master-ip
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(fn [ip]
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(str "sudo sed 's/127.0.0.1/" ip "/' /etc/rancher/k3s/k3s.yaml")))})
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(clj->js {:dependsOn [install-master worker-de worker-us]}))
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label-node
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(local/Command.
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"label-german-node-alt"
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(clj->js
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{:create (.apply (.-stdout kubeconfig-cmd)
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(fn [kubeconfig]
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(.apply (.-name worker-de)
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(fn [worker-name]
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(let [path "./kubeconfig.yaml"]
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(.writeFileSync fs path kubeconfig)
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(str
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"for i in {1..30}; do "
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" if kubectl --kubeconfig=" path " get node " worker-name " > /dev/null 2>&1; then "
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" echo 'Node " worker-name " found, proceeding with label.' && "
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" kubectl --kubeconfig=" path " label node " worker-name " location=de --overwrite && "
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" exit 0; "
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" else "
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" echo 'Node " worker-name " not ready yet. Waiting 10s... (Attempt: '\"$i\"'/30)'; "
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" sleep 10; "
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" fi; "
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"done; "
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"echo 'Error: Timed out waiting for node " worker-name ".' >&2 && "
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"exit 1;"))))))})
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(clj->js {:dependsOn [kubeconfig-cmd worker-de]}))]
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{:kubeconfig (pulumi/secret (.-stdout kubeconfig-cmd))}))
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(def config
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{:stack [:generic:execute]
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:app-name "cluster"
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:exec-fn create-cluster})
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