# Anushaya demo

## Actual demo
1. What problem are we solving?
- Customers want to run closer to metal
- Customers have an image they want to use
- Lack of CAPI support for HyperV
- Limited resources - not enough to run ROBO at edge
2. Why BYOH?
- Low hanging fruit to get us in the door - Stop bleeding customers to the competition
- stepping stone to CAP-T
3. What is BYOH?
- TKG on hosts that it didn't provision. customer brings host + OS. We do k8s upwards
4. Approach / Solution overview
- Demo PPT that Anushaya made
5. Demo
- Anushaya
- create mgmt cluster
- install byoh provider using clusterctl
- provision vsphere cluster (call out that we are NOT support mixed mode infra providers in MVP)
- ubuntu VM - copy stuff, run stuff
- show statuses
- show CRSes applies the CNI
- deploy workload and show its on the BYOH
7. Coming up next
- Target for Eretria
- Full cluster on BYOH
- Automated k8s components install
- Tanzu CLI integration

## Slack message
- Tag Peter Grant, Shiva Reddy, Steven Gemelos and team in a thread
- How to get involved
- #tkg-bear slack channel
- github code link

---
## Demo

### Prepare environment

cat ~/envvars.txt
source ~/envvars.txt

### Installing providers

clusterctl init \
    --core cluster-api:v0.4.0 \
    --bootstrap kubeadm:v0.4.0 \
    --control-plane kubeadm:v0.4.0 \
    --infrastructure vsphere:v0.8.0 \
    --infrastructure byoh:v0.4.0 \
    --config ~/.cluster-api/dev-repository/config.yaml

#### check if all controller pods are up and running
`k get po -A`

### Deploying workload cluster

cat ~/cluster-api-provider-vsphere/templates/cluster-template.yaml | envsubst | k apply -f -

#### check cluster status

clusterctl describe cluster demo-cluster \
    --disable-grouping \
    --disable-no-echo \
    --show-conditions all \
    --config ~/.cluster-api/dev-repository/config.yaml

### Build and copy artifacts to Ubuntu VM

cd ~/cluster-api-provider-byoh
make release-binaries

scp bin/agent-linux-amd64 vmware@10.180.108.237:/home/vmware
scp ~/.kube/config vmware@10.180.108.237:/home/vmware

### Prepare the BYO Ubuntu Host

sudo su

modprobe overlay
modprobe br_netfilter

cat <<EOF | tee /etc/modules-load.d/containerd.conf
overlay
br_netfilter
EOF

cat <<EOF | tee /etc/sysctl.d/99-kubernetes-cri.conf
net.bridge.bridge-nf-call-iptables  = 1
net.ipv4.ip_forward                 = 1
net.bridge.bridge-nf-call-ip6tables = 1
EOF

sysctl --system

apt-get update
apt-get install -y containerd

// iffff you get a lock error
lsof /var/lib/dpkg/lock
lsof /var/lib/apt/lists/lock
lsof /var/cache/apt/archives/lock

kill -9 <process_id>

mkdir -p /etc/containerd
containerd config default | tee /etc/containerd/config.toml
systemctl restart containerd

curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | apt-key add -

cat > /etc/apt/sources.list.d/kubernetes.list <<EOF
deb https://apt.kubernetes.io/ kubernetes-xenial main
EOF

apt update
apt install kubelet=1.22.0-00 kubeadm=1.22.0-00 kubectl=1.22.0-00
apt-mark hold containerd kubelet kubeadm kubectl

systemctl enable kubelet.service
systemctl enable containerd.service

### Apply machine deployment

cat ~/cluster-api-provider-byoh/test/e2e/data/infrastructure-provider-byoh/v1alpha4/md.yaml
cat ~/cluster-api-provider-byoh/test/e2e/data/infrastructure-provider-byoh/v1alpha4/md.yaml | envsubst | kubectl apply -f -

#### get workload cluster kubeconfig

kubectl get secret demo-cluster-kubeconfig -o jsonpath='{.data.value}' | base64 -d > ~/demo-cluster-kubeconfig
k --kubeconfig ~/demo-cluster-kubeconfig get nodes

#### apply calico for CNI

k --kubeconfig ~/demo-cluster-kubeconfig apply -f ~/calico.yaml
k --kubeconfig ~/demo-cluster-kubeconfig get nodes

### Apply nginx deployment

k --kubeconfig ~/demo-cluster-kubeconfig apply -f nginx-deployment.yaml
k --kubeconfig ~/demo-cluster-kubeconfig get deployment
k --kubeconfig ~/demo-cluster-kubeconfig get svc
http://10.180.108.237:31026/

apiVersion: bootstrap.cluster.x-k8s.io/v1alpha4
kind: KubeadmConfigTemplate
metadata:
  name: ${CLUSTER_NAME}-md-0
  namespace: default
spec:
  template:
    spec:
      joinConfiguration:
        nodeRegistration:
          criSocket: /var/run/containerd/containerd.sock
          kubeletExtraArgs:
            cloud-provider: external
          name: demo-host
      preKubeadmCommands:
      - hostname demo-host
      - echo "::1         ipv6-localhost ipv6-loopback" >/etc/hosts
      - echo "127.0.0.1   localhost" >>/etc/hosts
      - echo "127.0.0.1   demo-host" >>/etc/hosts
      - echo "demo-host" >/etc/hostname
      users:
      - name: caph
        sshAuthorizedKeys:
        - '${VSPHERE_SSH_AUTHORIZED_KEY}'
        sudo: ALL=(ALL) NOPASSWD:ALL