zwischenstand

k8s/install_k3d

@@ -0,0 +1,76 @@
+mkdir ~/k3d
+
+curl -s https://raw.githubusercontent.com/rancher/k3d/main/install.sh | bash
+CLUSTER=cnbc
+IP4=$(/sbin/ip -o -4 addr list br2 | awk '{print $4}' | cut -d/ -f1)
+
+# Get from TRAINER :)
+MIRROR_IP=192.168.1.246
+cat >registries.yml <<EOF 
+mirrors:
+  docker.io:
+    endpoint:
+      - "http://$MIRROR_IP:5001"
+      - "https://mirror.gcr.io"
+      - "https://docker.io"
+EOF
+
+# WARNING Check IP
+k3d cluster create $CLUSTER \
+  --api-port 8545 \
+  -p "8580:80@loadbalancer" \
+  -p "8543:443@loadbalancer" \
+  --agents=2 \
+  --k3s-arg "--tls-san=$IP4@server:0" \
+  --k3s-arg "--disable=traefik@server:0" \
+  --registry-create $CLUSTER-registry:0.0.0.0:5000 \
+  --registry-config=./registries.yml
+echo | \
+    openssl s_client -connect $IP4:8545 2>/dev/null | \
+    openssl x509 -text
+
+PORT=$(docker container inspect \
+    --format '{{ (index (index .NetworkSettings.Ports "5000/tcp") 0).HostPort }}' \
+    $CLUSTER-registry)
+sudo sh -c "echo 127.0.0.1 $CLUSTER-registry >>/etc/hosts"
+curl cnbc-registry:5000/v2/_catalog
+source <(k3d completion bash)
+
+cloud: 
+
+curl -s https://raw.githubusercontent.com/rancher/k3d/main/install.sh | bash
+CLUSTER=cnbc
+# cloud instance
+IP4=$(/sbin/ip -o -4 addr list eth0 | awk '{print $4}' | cut -d/ -f1)
+
+# WARNING Check IP
+k3d cluster create $CLUSTER \
+  --api-port 8545 \
+  -p "8580:80@loadbalancer" \
+  -p "8543:443@loadbalancer" \
+  --agents=2 \
+  --k3s-arg "--tls-san=$IP4@server:0" \
+  --k3s-arg "--disable=traefik@server:0" \
+  --registry-create $CLUSTER-registry:0.0.0.0:5000
+
+echo | \
+    openssl s_client -connect $IP4:8545 2>/dev/null | \
+    openssl x509 -text
+
+PORT=$(docker container inspect \
+    --format '{{ (index (index .NetworkSettings.Ports "5000/tcp") 0).HostPort }}' \
+    $CLUSTER-registry)
+sudo sh -c "echo 127.0.0.1 $CLUSTER-registry >>/etc/hosts"
+curl cnbc-registry:5000/v2/_catalog
+source <(k3d completion bash)
+
+sudo apt-get update && sudo apt-get install -y apt-transport-https
+curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg  \
+  | sudo apt-key add -
+echo "deb https://apt.kubernetes.io/ kubernetes-xenial main" \
+  | sudo tee -a /etc/apt/sources.list.d/kubernetes.list
+
+
+sudo apt-get update
+sudo apt-get install -y kubectl
+source <(kubectl completion bash)

k8s/k8s_Object_Structure

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+API Version ---> die Verison
+Kind ---> Pod, Deployment, Quota, usw
+Metadaten ---> Namen, Namespache, usw
+Spec --->Desired state
+Status ---> Actual state

k8s/pods

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+kubectl create namespace whoami
+kubectl config view
+kubectl config set-context --current --namespace whoami
+# create pod and service
+kubectl run whoami --image bee42/whoami:2.2.0 --expose --port 80
+kubectl get pods
+kubectl get pods -o yaml
+# see we created also a service!
+kubectl get svc
+
+
+kubectl run whoami --image bee42/whoami:2.2.0 --expose --port 80
+kubectl get pod whoami -o yaml
+
+# kann zur erstellung der YAML genutzt werden. 
+kubectl run whoami2 --image bee42/whoami:2.2.0 --labels=run=whoami --dry-run=client -o yaml >whoami-pod.yaml