161-talos.sh

# Source: https://gist.github.com/c7cdfef142bd65cc744789d3c1e90170

###########################################
# Talos Linux: OS Designed For Kubernetes #
# https://youtu.be/iEFb2Zg4xUg            #
###########################################

# Additional Info:
# - Talos Linux: https://www.talos.dev/
# - How To Create, Provision, And Operate Kubernetes With Cluster API (CAPI): https://youtu.be/8yUDUhZ6ako

#########
# Setup #
#########

# If using amd64 architecture
export ARCH=amd64

# If using arm64 architecture
export ARCH=arm64

curl -Lo /usr/local/bin/talosctl \
    "https://github.com/talos-systems/talos/releases/latest/download/talosctl-$(uname -s | tr "[:upper:]" "[:lower:]")-$ARCH"

chmod +x /usr/local/bin/talosctl

curl https://github.com/talos-systems/talos/releases/latest/download/digital-ocean-amd64.tar.gz \
    -L -o digital-ocean-amd64.tar.gz

tar -xzvf digital-ocean-amd64.tar.gz

rm digital-ocean-amd64.tar.gz

gzip disk.raw

rm disk.raw.gz

# Replace `[...]` with the region
export REGION=[...]

doctl compute image list

# Replace `[...]` with the image ID
export IMAGE_ID=[...]

doctl compute load-balancer create \
    --region $REGION \
    --name talos-demo \
    --tag-name talos-demo-cp \
    --health-check protocol:tcp,port:6443,check_interval_seconds:10,response_timeout_seconds:5,healthy_threshold:5,unhealthy_threshold:3 \
    --forwarding-rules entry_protocol:tcp,entry_port:443,target_protocol:tcp,target_port:6443

# Replace `[...]` with the LB ID
export LB_ID=[...]

export LB_IP=$(\
    doctl compute load-balancer get \
    --format IP $LB_ID | tail -1)

echo $LB_IP

# Repeat the previous two commands if the output is empty (if the LB has not yet been created)

# Replace `[...]` with the public key
export PUBLIC_KEY=[...]

doctl compute ssh-key create devops-toolkit --public-key $PUBLIC_KEY

# Replace `[...]` with your SSH key fingerprint
export SSH_KEY_FINGERPRINT=[...]

######################################
# Create Nodes Based On Talos Images #
######################################

talosctl gen config \
    talos-demo https://$LB_IP:443 \
    --kubernetes-version 1.23.0

cat controlplane.yaml

cat worker.yaml

cat talosconfig

export CTRL_SIZE=s-2vcpu-4gb

export WORKER_SIZE=s-2vcpu-4gb

for N in 1 2 3
do
    doctl compute droplet create \
        --region $REGION \
        --image $IMAGE_ID \
        --size $CTRL_SIZE \
        --enable-private-networking \
        --tag-names talos-demo-cp \
        --user-data-file controlplane.yaml \
        --ssh-keys $SSH_KEY_FINGERPRINT \
        talos-demo-cp-$N

    doctl compute droplet create \
        --region $REGION \
        --image $IMAGE_ID \
        --size $WORKER_SIZE \
        --enable-private-networking \
        --tag-names talos-demo-worker \
        --user-data-file worker.yaml \
        --ssh-keys $SSH_KEY_FINGERPRINT \
        talos-demo-worker-$N
done

###########################################
# Bootstrap Kubernetes Cluster With Talos #
###########################################

for N in 1 2 3
do
    export CP_IP_$N=$(doctl compute droplet get \
        --format PublicIPv4 \
        talos-demo-cp-$N \
        | tail -1)

    export WK_IP_$N=$(doctl compute droplet get \
        --format PublicIPv4 \
        talos-demo-worker-$N \
        | tail -1)
done

talosctl --talosconfig talosconfig \
    config endpoint $CP_IP_1

talosctl --talosconfig talosconfig \
    config node $CP_IP_1

talosctl --talosconfig talosconfig \
    bootstrap

talosctl --talosconfig talosconfig \
    kubeconfig kubeconfig.yaml

kubectl --kubeconfig kubeconfig.yaml \
    get nodes

##############################################
# Security, Predictability, And Evolvability #
##############################################

doctl compute ssh talos-demo-cp-2

doctl compute droplet create \
    --region $REGION \
    --image $IMAGE_ID \
    --size $WORKER_SIZE \
    --enable-private-networking \
    --tag-names talos-demo-worker \
    --user-data-file worker.yaml \
    --ssh-keys $SSH_KEY_FINGERPRINT \
    talos-demo-worker-4

kubectl --kubeconfig kubeconfig.yaml \
    get nodes

doctl compute droplet delete \
    talos-demo-worker-1 \
    --force

kubectl --kubeconfig kubeconfig.yaml \
    get nodes

talosctl \
    --talosconfig talosconfig \
    upgrade-k8s --to 1.23.1 \
    --dry-run

talosctl \
    --talosconfig talosconfig \
    upgrade-k8s --to 1.23.1

kubectl --kubeconfig kubeconfig.yaml \
    get nodes

kubectl --kubeconfig kubeconfig.yaml \
    delete node talos-demo-worker-1

talosctl \
    --talosconfig talosconfig \
    upgrade-k8s --to 1.23.1

kubectl --kubeconfig kubeconfig.yaml \
    get nodes

###################
# What's Missing? #
###################

kubectl --kubeconfig kubeconfig.yaml \
    get services --all-namespaces

kubectl --kubeconfig kubeconfig.yaml \
    get storageclasses

talosctl help

###########
# Destroy #
###########

for N in 1 2 3
do
    doctl compute droplet \
        delete talos-demo-cp-$N \
        --force
done

for N in 2 3 4
do
    doctl compute droplet \
        delete  talos-demo-worker-$N \
        --force
done

doctl compute load-balancer \
    delete $LB_ID \
    --force