01_Basic_Setup/justfile

@@ -1,11 +1,12 @@
 set fallback := true
 
-export LOCAL_K8S_HOST := env("LOCAL_K8S_HOST", "")
+export K8S_CONTEXT := env("K8S_CONTEXT", "")
+export K8S_MASTER_NODE_NAME := env("K8S_MASTER_NODE_NAME", "")
 export EXTERNAL_K8S_HOST := env("EXTERNAL_K8S_HOST", "")
 export KEYCLOAK_HOST := env("KEYCLOAK_HOST", "")
 export KEYCLOAK_REALM := env("KEYCLOAK_REALM", "buunstack")
 export K8S_OIDC_CLIENT_ID := env('K8S_OIDC_CLIENT_ID', "k8s")
-export K3S_ENABLE_REGISTRY := env("K3S_ENABLE_REGISTRY", "true")
+export K3S_ENABLE_REGISTRY := env("K3S_ENABLE_REGISTRY", "false")
 export SERVER_IP := env("K3S_SERVER_IP","192.168.178.45")
 export AGENT_IP := env("K3S_AGENT_IP","192.168.178.75")
 export USER := env("K3S_USER","basti")
@@ -26,20 +27,16 @@ install:
             gum input --prompt="KUBECONFIG file: " --value="${HOME}/.kube/config" --width=100
         )
         context=$(
-            gum input --prompt="Context name: " --value="${LOCAL_K8S_HOST}" --width=100
+            gum input --prompt="Context name: " --value="${K8S_CONTEXT}" --width=100
         )
     fi
 
     args=(
         "install"
-        "--host" "${LOCAL_K8S_HOST}"
+        "--context" "${K8S_CONTEXT}"
-        "--ip" "${SERVER_IP}"
+        "--host" "${K8S_MASTER_NODE_NAME}"
-        "--tls-san" "${EXTERNAL_K8S_HOST}"
         "--user" "${username}"
     )
-    if [ -n "${context}" ]; then
-        args+=("--context" "${context}")
-    fi
 
     if [ -n "${kubeconfig}" ]; then
         mkdir -p "$(dirname "${kubeconfig}")"
@@ -74,31 +71,33 @@ install:
         echo "  localhost:30500"
         echo ""
         echo "Usage:"
-        echo "  export DOCKER_HOST=ssh://${LOCAL_K8S_HOST}"
+        echo "  export DOCKER_HOST=ssh://${K8S_MASTER_NODE_NAME}"
         echo "  docker build -t localhost:30500/myapp:latest ."
         echo "  docker push localhost:30500/myapp:latest"
         echo "  kubectl run myapp --image=localhost:30500/myapp:latest"
     fi
 
-    echo "k3s cluster installed on ${LOCAL_K8S_HOST}."
+    echo "k3s cluster installed on ${K8S_MASTER_NODE_NAME}."
 
 
 uninstall:
     #!/bin/bash
     set -euo pipefail
-    if gum confirm "Uninstall k3s from ${LOCAL_K8S_HOST}?"; then
+    if gum confirm "Uninstall k3s from ${K8S_MASTER_NODE_NAME}?"; then
 
-        echo "Removing content of Agent node..."
+        if gum confirm "Also remove Agent node at ${AGENT_IP}?"; then
+            echo "Removing Agent node at ${AGENT_IP}..."
             ssh "${AGENT_IP}" "/usr/local/bin/k3s-agent-uninstall.sh"
+        fi
 
         echo "Removing content of Server node..."
-        ssh "${SERVER_IP}" "/usr/local/bin/k3s-uninstall.sh"
+        ssh "${K8S_MASTER_NODE_NAME}" "/usr/local/bin/k3s-uninstall.sh"
         echo "Cleaning up kubeconfig entries..."
-        cluster_name=$(kubectl config view -o json | jq -r ".contexts[] | select(.name == \"${LOCAL_K8S_HOST}\") | .context.cluster // empty")
+        cluster_name=$(kubectl config view -o json | jq -r ".contexts[] | select(.name == \"${K8S_CONTEXT}\") | .context.cluster // empty")
-        user_name=$(kubectl config view -o json | jq -r ".contexts[] | select(.name == \"${LOCAL_K8S_HOST}\") | .context.user // empty")
+        user_name=$(kubectl config view -o json | jq -r ".contexts[] | select(.name == \"${K8S_CONTEXT}\") | .context.user // empty")
-        if kubectl config get-contexts "${LOCAL_K8S_HOST}" &>/dev/null; then
+        if kubectl config get-contexts "${K8S_CONTEXT}" &>/dev/null; then
-            kubectl config delete-context "${LOCAL_K8S_HOST}"
+            kubectl config delete-context "${K8S_CONTEXT}"
-            echo "Deleted context: ${LOCAL_K8S_HOST}"
+            echo "Deleted context: ${K8S_CONTEXT}"
         fi
         if [ -n "${cluster_name}" ] && kubectl config get-clusters | grep -q "^${cluster_name}$"; then
             kubectl config delete-cluster "${cluster_name}"
@@ -108,7 +107,7 @@ uninstall:
             kubectl config delete-user "${user_name}"
             echo "Deleted user: ${user_name}"
         fi
-        echo "k3s cluster uninstalled from ${LOCAL_K8S_HOST}."
+        echo "k3s cluster uninstalled from ${K8S_CONTEXT}."
     else
         echo "Uninstallation cancelled." >&2
         exit 1
@@ -131,4 +130,6 @@ add-agent:
 
 
     echo "Running: k3sup ${args[*]}"
+    k3sup "${args[@]}"
+    echo "Agent node at ${new_agent_ip} added to cluster."
  

env/env.local.gomplate

@@ -1,4 +1,5 @@
 # shellcheck disable=all
-LOCAL_K8S_HOST={{ .Env.LOCAL_K8S_HOST }}
+K8S_CONTEXT={{ .Env.K8S_CONTEXT }}
+K8S_MASTER_NODE_NAME={{ .Env.K8S_MASTER_NODE_NAME }}
 SERVER_IP={{ .Env.SERVER_IP }}
 AGENT_IP={{ .Env.AGENT_IP }}

env/justfile

@@ -1,15 +1,20 @@
 set fallback := true
 
 export ENV_FILE := ".env.local"
-export LOCAL_K8S_HOST := env("LOCAL_K8S_HOST", "")
+export K8S_CONTEXT := env("K8S_CONTEXT", "")
+export K8S_MASTER_NODE_NAME := env("K8S_MASTER_NODE_NAME", "")
 export SERVER_IP := env("SERVER_IP", "")
 export AGENT_IP := env("AGENT_IP", "")
 
 check:
     #!/bin/bash
     set -euo pipefail
-    if [ -z "${LOCAL_K8S_HOST}" ]; then
+    if [ -z "${K8S_CONTEXT}" ]; then
-        echo "LOCAL_K8S_HOST is not set. Please execute 'just env::setup'" >&2
+        echo "K8S_CONTEXT is not set. Please execute 'just env::setup'" >&2
+        exit 1
+    fi    
+    if [ -z "${K8S_MASTER_NODE_NAME}" ]; then
+        echo "K8S_MASTER_NODE_NAME is not set. Please execute 'just env::setup'" >&2
         exit 1
     fi
     if [ -z "${SERVER_IP}" ]; then
@@ -27,7 +32,7 @@ setup:
     if [ -f ../.env.local ]; then
         echo ".env.local already exists." >&2
         if gum confirm "Do you want to overwrite it?"; then
-            LOCAL_K8S_HOST=""
+            K8S_CONTEXT=""
             SERVER_IP=""
             AGENT_IP=""
         elif [[ $? -eq 130 ]]; then
@@ -38,10 +43,19 @@ setup:
             exit 1
         fi
     fi
-    while [ -z "${LOCAL_K8S_HOST}" ]; do
+    while [ -z "${K8S_CONTEXT}" ]; do
-        if ! LOCAL_K8S_HOST=$(
+        if ! K8S_CONTEXT=$(
-            gum input --prompt="Internal k8s hostname (for SSH): " \
+            gum input --prompt="Context name: " \
-            --width=100 --placeholder="k8s-host"
+            --width=100 --placeholder="context"
+        ); then
+            echo "Setup cancelled." >&2
+            exit 1
+        fi
+    done
+    while [ -z "${K8S_MASTER_NODE_NAME}" ]; do
+        if ! K8S_MASTER_NODE_NAME=$(
+            gum input --prompt="Master Node Hostname: " \
+            --width=100 --placeholder="Master Node Name"
         ); then
             echo "Setup cancelled." >&2
             exit 1