setup-ci-endpoint

#!/usr/bin/env bash
# -*- mode: sh; indent-tabs-mode: nil; sh-basic-offset: 4 -*-
# vim: autoindent tabstop=4 shiftwidth=4 expandtab softtabstop=4 filetype=bash

SCRIPT_DIR=$(dirname $0)
SCRIPT_DIR=$(readlink -e ${SCRIPT_DIR})

. ${SCRIPT_DIR}/base

CI_RUN_ENVIRONMENT="standalone"
CI_ENDPOINT="remotehosts"

REGISTRY_TLS_VERIFY="true"

longopts=",run-environment:,ci-endpoint:"
opts=$(getopt -q -o "" --longoptions "${longopts}" -n "$0" -- "$@")
if [ ${?} -ne 0 ]; then
    echo "ERROR: Unrecognized option specified: $@"
    exit 1
fi
eval set -- "${opts}"
while true; do
    case "${1}" in
        --ci-endpoint)
            shift
            CI_ENDPOINT="${1}"
            shift
            ;;
        --run-environment)
            shift
            CI_RUN_ENVIRONMENT="${1}"
            shift
            ;;
        --)
            shift
            break
            ;;
        *)
            echo "ERROR: Unexpected argument [${1}]"
            shift
            break
            ;;
    esac
done

# validate inputs
validate_ci_run_environment
validate_ci_endpoint

# configure SSH for loopback connectivity
start_github_group "Configure loop SSH access"
apt install openssh-server
systemctl start sshd
ssh-keygen -t ed25519 -q -f /root/.ssh/id_ed25519 -N ""
bash -c "cat /root/.ssh/id_ed25519.pub > /root/.ssh/authorized_keys"
chmod 600 /root/.ssh/authorized_keys
if ! do_ssh -o StrictHostKeyChecking=no localhost echo "password-less root login over ssh works"; then
    echo "ERROR: loopback ssh connection test failed"
    exit 1
fi
stop_github_group

# ensure endpoint availability
case "${CI_ENDPOINT}" in
    k8s)
        start_github_group "Configure k8s endpoint"

        # fixup some microk8s dependencies before installing it
        update-alternatives --set iptables /usr/sbin/iptables-legacy
        update-alternatives --set ip6tables /usr/sbin/ip6tables-legacy

        snap install microk8s --classic
        if ! microk8s status --wait-ready; then
            echo "ERROR: Failed to install and initialize microk8s"
            exit 1
        fi

        printf "#%s/bin/bash\n\nmicrok8s kubectl \$@\n" "!" > /usr/local/bin/kubectl
        chmod +x /usr/local/bin/kubectl

        stop_github_group
        ;;
    remotehosts)
        start_github_group "Configure ${CI_ENDPOINT} endpoint"
        echo "Nothing to do here"
        stop_github_group
        ;;
esac