#!/bin/bash

# Test deployment of octavia.

set -o xtrace
set -o errexit

# Enable unbuffered output for Ansible in Jenkins.
export PYTHONUNBUFFERED=1

function check_certificate_expiry {
    RAW_INVENTORY=/etc/kolla/inventory
    source $KOLLA_ANSIBLE_VENV_PATH/bin/activate
    kolla-ansible octavia-certificates -i ${RAW_INVENTORY} --check-expiry 7
    deactivate
}

function register_amphora_image {
    amphora_url=https://tarballs.opendev.org/openstack/octavia/test-images/test-only-amphora-x64-haproxy-ubuntu-focal.qcow2
    curl -o amphora.qcow2 $amphora_url
    (. /etc/kolla/octavia-openrc.sh && openstack image create amphora-x64-haproxy --file amphora.qcow2  --tag amphora --disk-format qcow2 --property hw_architecture='x86_64' --property hw_rng_model=virtio)
}

function test_octavia {
    register_amphora_image

    # Smoke test.
    openstack loadbalancer list

    # Create a Loadblanacer
    openstack loadbalancer create --name lb --vip-subnet-id demo-subnet --wait
    # Create a server to act as a backend.
    openstack server create --wait --image cirros --flavor m1.tiny --key-name mykey --network demo-net lb_member --wait
    member_fip=$(openstack floating ip create public1 -f value -c floating_ip_address)
    openstack server add floating ip lb_member ${member_fip}
    member_ip=$(openstack floating ip show ${member_fip} -f value -c fixed_ip_address)

    # Dummy HTTP server.
    attempts=12
    for i in $(seq 1 ${attempts}); do
        if ssh -v -o BatchMode=yes -o StrictHostKeyChecking=no cirros@${member_fip} 'nohup sh -c "while true; do echo -e \"HTTP/1.1 200 OK\n\n $(date)\" | sudo nc -l -p 8000; done &"'; then
            break
        elif [[ $i -eq ${attempts} ]]; then
            echo "Failed to access server via SSH after ${attempts} attempts"
            echo "Console log:"
            openstack console log show lb_member
            return 1
        else
            echo "Cannot access server - retrying"
        fi
        sleep 10
    done

    openstack loadbalancer listener create --name listener --protocol HTTP --protocol-port 8000 --wait lb
    openstack loadbalancer pool create --name pool --lb-algorithm ROUND_ROBIN --listener listener --protocol HTTP --wait
    openstack loadbalancer member create --subnet-id demo-subnet --address ${member_ip} --protocol-port 8000 pool --wait

    # Add a floating IP to the load balancer.
    lb_fip=$(openstack floating ip create public1 -f value -c name)
    lb_vip=$(openstack loadbalancer show lb -f value -c vip_address)
    attempt=0
    while [[ $(openstack port list --fixed-ip ip-address=$lb_vip -f value -c ID) == "" ]]; do
        echo "Port for LB with VIP ip addr $lb_vip not available yet"
        attempt=$((attempt+1))
        if [[ $attempt -eq 10 ]]; then
            echo "ERROR: Port for LB with VIP ip addr failed to become available"
            openstack port list --fixed-ip ip-address=$lb_vip
            return 1
        fi
        sleep $attempt
    done
    lb_port_id=$(openstack port list --fixed-ip ip-address=$lb_vip -f value -c ID)
    openstack floating ip set $lb_fip --port $lb_port_id

    # Attempt to access the load balanced HTTP server.
    attempts=12
    for i in $(seq 1 ${attempts}); do
        if curl $lb_fip:8000; then
            break
        elif [[ $i -eq ${attempts} ]]; then
            echo "Failed to access load balanced service after ${attempts} attempts"
            return 1
        else
            echo "Cannot access load balancer - retrying"
        fi
        sleep 10
    done

    # Clean up.
    openstack loadbalancer delete lb --cascade --wait
    openstack floating ip delete ${lb_fip}

    openstack server remove floating ip lb_member ${member_fip}
    openstack floating ip delete ${member_fip}
    openstack server delete --wait lb_member
}

function test_internal_dns_integration {

    # As per test globals - neutron integration is turned on
    if openstack extension list --network -f value -c Alias | grep -q dns-integration; then
        DNS_NAME="my-port"
        PORT_NAME="${DNS_NAME}"
        DNS_DOMAIN=$(grep 'neutron_dns_domain:' /etc/kolla/globals.yml \
                            | awk -F ':' '{print $2}' \
                            | sed -e 's/"//g' -e "s/'//g" -e "s/\ *//g")

        openstack network create dns-test-network
        openstack subnet create --network dns-test-network --subnet-range 192.168.88.0/24 dns-test-subnet
        openstack port create --network dns-test-network --dns-name ${DNS_NAME} ${PORT_NAME}

        DNS_ASSIGNMENT=$(openstack port show ${DNS_NAME} -f json -c dns_assignment)
        FQDN=$(echo ${DNS_ASSIGNMENT} | python -c 'import json,sys;obj=json.load(sys.stdin);print(obj["dns_assignment"][0]["fqdn"]);')
        HOSTNAME=$(echo ${DNS_ASSIGNMENT} | python -c 'import json,sys;obj=json.load(sys.stdin);print(obj["dns_assignment"][0]["hostname"]);')

        if [ "${DNS_NAME}.${DNS_DOMAIN}" == "${FQDN}" ]; then
            echo "[i] Test neutron internal DNS integration FQDN check port - PASS"
        else
            echo "[e] Test neutron internal DNS integration FQDN check port - FAIL"
            exit 1
        fi

        if [ "${DNS_NAME}" == "${HOSTNAME}" ]; then
            echo "[i] Test neutron internal DNS integration HOSTNAME check port - PASS"
        else
            echo "[e] Test neutron internal DNS integration HOSTNAME check port - FAIL"
            exit 1
        fi

        openstack port delete ${PORT_NAME}

        SERVER_NAME="my_vm"
        SERVER_NAME_SANITIZED=$(echo ${SERVER_NAME} | sed -e 's/_/-/g')

        openstack server create --image cirros --flavor m1.tiny --network dns-test-network ${SERVER_NAME}

        SERVER_ID=$(openstack server show ${SERVER_NAME} -f value -c id)
        attempt=0
        while [[ $(openstack port list --device-id ${SERVER_ID} -f value -c ID) == "" ]]; do
            echo "Port for server ${SERVER_NAME} not available yet"
            attempt=$((attempt+1))
            if [[ $attempt -eq 10 ]]; then
                echo "ERROR: Port for server ${SERVER_NAME} failed to become available"
                openstack port list --device-id ${SERVER_ID}
                return 1
            fi
            sleep $attempt
        done
        PORT_ID=$(openstack port list --device-id ${SERVER_ID} -f value -c ID)

        DNS_ASSIGNMENT=$(openstack port show ${PORT_ID} -f json -c dns_assignment)
        FQDN=$(echo ${DNS_ASSIGNMENT} | python -c 'import json,sys;obj=json.load(sys.stdin);print(obj["dns_assignment"][0]["fqdn"]);')
        HOSTNAME=$(echo ${DNS_ASSIGNMENT} | python -c 'import json,sys;obj=json.load(sys.stdin);print(obj["dns_assignment"][0]["hostname"]);')

        if [ "${SERVER_NAME_SANITIZED}.${DNS_DOMAIN}" == "${FQDN}" ]; then
            echo "[i] Test neutron internal DNS integration FQDN check instance create - PASS"
        else
            echo "[e] Test neutron internal DNS integration FQDN check instance create - FAIL"
            exit 1
        fi

        if [ "${SERVER_NAME_SANITIZED}" == "${HOSTNAME}" ]; then
            echo "[i] Test neutron internal DNS integration HOSTNAME check instance create - PASS"
        else
            echo "[e] Test neutron internal DNS integration HOSTNAME check instance create - FAIL"
            exit 1
        fi

        openstack server delete --wait ${SERVER_NAME}
        openstack subnet delete dns-test-subnet
        openstack network delete dns-test-network

    else
        echo "[i] DNS Integration is not enabled."
    fi
}

function test_octavia_logged {
    # Check if any certs expire within a week.
    check_certificate_expiry

    . /etc/kolla/admin-openrc.sh
    . ~/openstackclient-venv/bin/activate
    test_octavia
    test_internal_dns_integration
}

function test_octavia_setup {
    echo "Testing Octavia"
    test_octavia_logged > /tmp/logs/ansible/test-octavia 2>&1
    result=$?
    if [[ $result != 0 ]]; then
        echo "Testing Octavia failed. See ansible/test-octavia for details"
    else
        echo "Successfully tested Octavia. See ansible/test-octavia for details"
    fi
    return $result
}

test_octavia_setup