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-rw-r--r--mcp/scripts/lib.sh128
1 files changed, 128 insertions, 0 deletions
diff --git a/mcp/scripts/lib.sh b/mcp/scripts/lib.sh
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+#
+# Library of shell functions
+#
+
+generate_ssh_key() {
+ [ -f "$SSH_KEY" ] || ssh-keygen -f ${SSH_KEY} -N ''
+ install -o jenkins -m 0600 ${SSH_KEY} /tmp/
+}
+
+get_base_image() {
+ local base_image=$1
+
+ mkdir -p images
+ wget -P /tmp -nc $base_image
+}
+
+cleanup_vms() {
+ # clean up existing nodes
+ for node in $(virsh list --name | grep -P '\w{3}\d{2}'); do
+ virsh destroy $node
+ virsh undefine $node
+ done
+}
+
+prepare_vms() {
+ local -n vnodes=$1
+ local base_image=$2
+
+ cleanup_vms
+ get_base_image $base_image
+ envsubst < user-data.template > user-data.sh
+
+ for node in "${vnodes[@]}"; do
+ # create/prepare images
+ ./create-config-drive.sh -k ${SSH_KEY}.pub -u user-data.sh -h ${node} images/mcp_${node}.iso
+ cp /tmp/${base_image/*\/} images/mcp_${node}.qcow2
+ qemu-img resize images/mcp_${node}.qcow2 100G
+ done
+}
+
+create_networks() {
+ # create required networks
+ for net in pxe mgmt internal public; do
+ if virsh net-info $net >/dev/null 2>&1; then
+ virsh net-destroy ${net}
+ virsh net-undefine ${net}
+ fi
+ virsh net-define net_${net}.xml
+ virsh net-autostart ${net}
+ virsh net-start ${net}
+ done
+}
+
+create_vms() {
+ local -n vnodes=$1
+ local -n vnodes_ram=$2
+
+ # create vms with specified options
+ for node in "${vnodes[@]}"; do
+ virt-install --name ${node} --ram ${vnodes_ram[$node]} --vcpus=2 --cpu host --accelerate \
+ --network network:pxe,model=virtio \
+ --network network:mgmt,model=virtio \
+ --network network:internal,model=virtio \
+ --network network:public,model=virtio \
+ --disk path=$(pwd)/images/mcp_${node}.qcow2,format=qcow2,bus=virtio,cache=none,io=native \
+ --os-type linux --os-variant none \
+ --boot hd --vnc --console pty --autostart --noreboot \
+ --disk path=$(pwd)/images/mcp_${node}.iso,device=cdrom
+ done
+}
+
+update_pxe_network() {
+ # set static ip address for salt master node
+ virsh net-update pxe add ip-dhcp-host \
+ "<host mac='$(virsh domiflist cfg01 | awk '/pxe/ {print $5}')' name='cfg01' ip='$SALT_MASTER'/>" --live
+}
+
+start_vms() {
+ local -n vnodes=$1
+
+ # start vms
+ for node in "${vnodes[@]}"; do
+ virsh start ${node}
+ sleep $[RANDOM%5+1]
+ done
+}
+
+check_connection() {
+ local total_attempts=60
+ local sleep_time=5
+ local attempt=1
+
+ set +e
+ echo '[INFO] Attempting to get into Salt master ...'
+
+ # wait until ssh on Salt master is available
+ while (($attempt <= $total_attempts)); do
+ ssh -i ${SSH_KEY} ubuntu@${SALT_MASTER} uptime
+ case $? in
+ 0) echo "${attempt}> Success"; break ;;
+ *) echo "${attempt}/${total_attempts}> ssh server ain't ready yet, waiting for ${sleep_time} seconds ..." ;;
+ esac
+ sleep $sleep_time
+ ((attempt+=1))
+ done
+ set -e
+}
+
+parse_yaml() {
+ local prefix=$2
+ local s
+ local w
+ local fs
+ s='[[:space:]]*'
+ w='[a-zA-Z0-9_]*'
+ fs="$(echo @|tr @ '\034')"
+ sed -ne "s|^\($s\)\($w\)$s:$s\"\(.*\)\"$s\$|\1$fs\2$fs\3|p" \
+ -e "s|^\($s\)\($w\)$s[:-]$s\(.*\)$s\$|\1$fs\2$fs\3|p" "$1" |
+ awk -F"$fs" '{
+ indent = length($1)/2;
+ vname[indent] = $2;
+ for (i in vname) {if (i > indent) {delete vname[i]}}
+ if (length($3) > 0) {
+ vn=""; for (i=0; i<indent; i++) {vn=(vn)(vname[i])("_")}
+ printf("%s%s%s=(\"%s\")\n", "'"$prefix"'",vn, $2, $3);
+ }
+ }' | sed 's/_=/+=/g'
+}