create-gluster-servers-existing-rg

#!/bin/bash

# check vm sized
# az vm list-sizes -l westeurope | grep -i ds -n5

GLUSTER_IPS=()

GLUSTERS=3
RESOURCE_GROUP=$1 # swarm
LOCATION="westeurope"
USERNAME="swarm"
VM_SIZE="Standard_DS4_v2"
SSH_PUBLIC_PATH="~/.ssh/id_rsa.pub"
OS_DISK_SIZE=40
DATA_DISK_SIZE=2048

if [[ -z "${RESOURCE_GROUP}" ]]; then
    echo 'specify $1 resource group name'
    exit 1
fi

log () {
    dt=$(date '+%Y.%m.%d %H:%M:%S')
    message="${dt}: $1"
    echo $message >> "${RESOURCE_GROUP}.gluster.log"
    echo $message
}

log "HELLO"

# resource group

SUBSCRIPTION_ID=$(az account show --output tsv |  awk '{print $2}')
VNET="${RESOURCE_GROUP}-vnet"

GLUSTER_NSG="${RESOURCE_GROUP}-gluster-nsg"

az network nsg create \
    --resource-group $RESOURCE_GROUP \
    --name $GLUSTER_NSG \
    --output none

az network nsg rule create \
    --resource-group $RESOURCE_GROUP \
    --nsg-name $GLUSTER_NSG \
    --name "${GLUSTER_NSG}-ssh" \
    --protocol tcp \
    --priority 1000 \
    --destination-port-range 22 \
    --access allow \
    --output none

log "CREATED Network Security Group $GLUSTER_NSG with open ports: 22"

for NODE in $(seq $GLUSTERS)
do

    IP_NAME="${RESOURCE_GROUP}-gluster-${NODE}-ip"
    NIC_NAME="${RESOURCE_GROUP}-gluster-${NODE}-nic"
    VM_NAME="${RESOURCE_GROUP}-gluster-${NODE}"
    OS_DISK_NAME="${RESOURCE_GROUP}-gluster-${NODE}-os-disk"

    az network public-ip create \
        --resource-group $RESOURCE_GROUP \
        --name $IP_NAME \
        --allocation-method Static \
        --dns-name $IP_NAME \
        --output none

    GLUSTER_IPS[$NODE]=$(az network public-ip show -g $RESOURCE_GROUP -n $IP_NAME --query "{address: ipAddress}" --output tsv)

    log "CREATED Static IP $IP_NAME ${GLUSTER_IPS[$NODE]} for $VM_NAME"

    az network nic create \
        --resource-group $RESOURCE_GROUP \
        --name $NIC_NAME \
        --vnet-name $VNET \
        --subnet default \
        --public-ip-address $IP_NAME \
        --private-ip-address 10.0.1.10${NODE} \
        --network-security-group $GLUSTER_NSG \
        --output none

    log "CREATED NIC $NIC_NAME for $VM_NAME with NSG ${GLUSTER_NSG}"
    
    az vm create \
        --resource-group $RESOURCE_GROUP \
        --name $VM_NAME \
        --location $LOCATION \
        --nics $NIC_NAME \
        --image UbuntuLTS \
        --size $VM_SIZE \
        --admin-username $USERNAME \
        --os-disk-name $OS_DISK_NAME \
        --os-disk-size-gb $OS_DISK_SIZE \
        --data-disk-sizes-gb $DATA_DISK_SIZE \
        --ssh-key-value $SSH_PUBLIC_PATH \
        --no-wait \
        --output none

    log "CREATED VM $VM_NAME with disk OS ${OS_DISK_SIZE}gb with user $USERNAME. => ssh ${USERNAME}@${GLUSTER_IPS[$NODE]}"
done

log "ALL WORK DONE!"

log "HOSTS:"
log "GLUSTER:"
for NODE in $(seq $GLUSTERS)
do
    log "${GLUSTER_IPS[$NODE]}"
done

log "connect to ssh via:"

for NODE in $(seq $GLUSTERS)
do
    log "ssh ${USERNAME}@${GLUSTER_IPS[$NODE]}"
done

log "BYE BYE!"