feat(tests): add script for creating minikube cluster

Signed-off-by: Niladri Halder <[email protected]>

tests/setup.sh

@@ -0,0 +1,175 @@
+#!/usr/bin/env bash
+
+#set -x
+
+die() {
+	local _return="${2:-1}"
+	test "${_PRINT_HELP:-no}" = yes && print_help >&2
+	echo -e "ERROR: $1" >&2
+	exit "${_return}"
+}
+
+print_help() {
+	cat <<EOF
+Usage: $(basename $0) [OPTIONS]
+
+Options:
+  -h, --help                      Display this text.
+  --kubernetes-version <version>  Specify the version of kubernetes.
+  -i, --install-prerequisites     Install containerd before creating minikube cluster.
+
+Examples:
+  $(basename $0) --kubernetes-version v1.27.2
+EOF
+}
+
+parse_args() {
+	while test $# -gt 0; do
+		arg="$1"
+		case "$arg" in
+		--kubernetes-version)
+			test $# -lt 2 && die "missing value for the optional argument '$arg'."
+			KUBERNETES_VERSION="${2}"
+			shift
+			;;
+		--kubernetes-version=*)
+			KUBERNETES_VERSION="${arg#*=}"
+			;;
+		-i | --install-prerequisites)
+			INSTALL_PREREQUISITES="true"
+			;;
+		-h | --help)
+  			print_help
+			exit 0
+			;;
+		-h*)
+			print_help
+			exit 0
+			;;
+		*)
+			_PRINT_HELP=yes die "unexpected argument '$arg'" 1
+			;;
+		esac
+		shift
+	done
+}
+
+must_succeed_command() {
+	local error="${2:-command \'${1}\' failed}"
+	${1} || die "${error}"
+}
+
+must_exists_in_path() {
+  local error="${2:-command ${1} not present in PATH}"
+  must_succeed_command "command -v ${1}" "${error}"
+}
+
+get_latest_version_tag() {
+  local github_org=${1}
+  local github_repo=${2}
+
+  local tag_name=$(curl -L -H "Accept: application/vnd.github+json" https://api.github.com/repos/${github_org}/${github_repo}/releases | jq '.[0].tag_name' | tr -d " \t\r\n")
+
+  return $tag_name
+}
+
+get_asset_url_from_latest_github_release() {
+  local github_org=${1}
+  local github_repo=${2}
+  local release_asset_regex=${3}
+
+  local url=$(curl -L -H "Accept: application/vnd.github+json" https://api.github.com/repos/${github_org}/${github_repo}/releases | jq ".[0].assets[] | select(.name? | match(\"${release_asset_regex}\")).url" | tr -d " \t\r\n")
+
+  return $url
+}
+
+get_asset_binary() {
+  local github_asset_url=${1}
+  local workspace=${2}
+  local output_filepath=${3}
+
+  cd ${workspace}
+  curl -L -H "Accept: application/octet-stream" ${github_asset_url} -o ${output_filepath}
+  cd -
+}
+
+install_prerequisites() {
+  # Check if LINUX.
+  local os_error="not a GNU/Linux environment"
+  os=$(must_succeed_command "uname -o" "${os_error}" | tr -d " \t\r\n")
+  if [ "${os}" != "GNU/Linux" ]; then
+    die "${os_error}"
+  fi
+
+  # Check if x86_64.
+  local arch_error="not a x86_64 GNU/Linux environment"
+  arch=$(must_succeed_command "uname -p" "${arch_error}" | tr -d " \t\r\n")
+  if [ "${arch}" != "x86_64" ]; then
+    die "${arch_error}"
+  fi
+
+  # Check if nix-shell prerequisites conntrack, minikube, crictl
+  # are present in PATH.
+  nix_shell_prerequisites=("conntrack" "minikube" "crictl" "curl" "jq" "awk" "systemctl")
+  for bin in "${nix_shell_prerequisites[@]}"; do
+    must_exists_in_path "${bin}" > /dev/null
+  done
+
+  # Directory to store downloaded files
+  workspace=$(must_succeed_command "mktemp -d --suffix=-mayastor-extensions" "failed to create temporary directory" | tr -d " \t\r\n")
+
+  # Install cri-dockerd, if not installed.
+  cri_dockerd_path=$(command -v cri-dockerd) || CRI_DOCKERD_ERROR=$?
+  if [ -n "${CRI_DOCKERD_ERROR}" ]; then
+    echo "Downloading latest version of cri-dockerd..."
+
+    url=$(get_asset_url_from_latest_github_release "Mirantis" "cri-dockerd" "^(cri-dockerd-[0-9]+.[0-9]+.[0-9]+.amd64.tgz)$")
+    get_asset_binary "${url}" "${workspace}" "cri-dockerd.tgz"
+    tar -xf ${workspace}/cri-dockerd.tgz -C ${workspace}
+    mkdir -p /usr/local/bin
+    install -o root -g root -m 0755 ${workspace}/cri-dockerd/cri-dockerd /usr/local/bin/cri-dockerd
+    command -v cri-dockerd > /dev/null || export PATH=$PATH:/usr/local/bin
+    command -v cri-dockerd || die "failed to install cri-dockerd" 1
+
+    echo "Downloaded latest version of cri-dockerd"
+  fi
+  # Check if cri-docker.socket systemd service is active. While this is extremely
+  # unlikely if cri-dockerd wasn't already installed, it is possible.
+  systemctl is-active --quiet cri-dockerd.socket || CRI_DOCKERD_VERSION="v$(cri-dockerd --version 2>&1 | awk '{print $2}')"
+  # Download systemd service files
+  systemd_service_files_url="https://raw.githubusercontent.com/Mirantis/cri-dockerd/${CRI_DOCKERD_VERSION}/packaging/systemd"
+  cd ${workspace}
+  curl -L ${systemd_service_files_url}/cri-docker.service -o cri-docker.service
+  curl -L ${systemd_service_files_url}/cri-docker.socket -o cri-docker.socket
+  cd -
+  mv -f ${workspace}/cri-docker.{service,socket} /etc/systemd/system
+  sed -i -e 's,/usr/bin/cri-dockerd,/usr/local/bin/cri-dockerd,' /etc/systemd/system/cri-docker.service
+  systemctl daemon-reload
+  systemctl enable --now cri-docker.socket
+  systemctl is-active --quiet cri-dockerd.socket || die "failed to set up cri-dockerd systemd service" 1
+  echo "Enabled cri-dockerd.socket"
+
+  # Install container-network-plugins, if not installed.
+  echo "Installing container-network-plugins"
+  containernetworking_tag=$(get_latest_version_tag "containernetworking" "plugins")
+  CNI_PLUGIN_VERSION="${containernetworking_tag}"
+  CNI_PLUGIN_TAR="cni-plugins-linux-amd64-$CNI_PLUGIN_VERSION.tgz" # change arch if not on amd64
+  CNI_PLUGIN_INSTALL_DIR="/opt/cni/bin"
+  cd ${workspace}
+  curl -LO "https://github.com/containernetworking/plugins/releases/download/$CNI_PLUGIN_VERSION/$CNI_PLUGIN_TAR"
+  mkdir -p "$CNI_PLUGIN_INSTALL_DIR"
+  tar -xf "$CNI_PLUGIN_TAR" -C "$CNI_PLUGIN_INSTALL_DIR"
+  cd -
+  echo "Installed container-network-plugins"
+}
+
+KUBERNETES_VERSION="v1.25.11"
+INSTALL_PREREQUISITES="false"
+
+parse_args "$@"
+
+verify_prerequisites
+
+test "${INSTALL_PREREQUISITES}" = "true" && install_prerequisites
+
+minikube start --kubernetes-version=${KUBERNETES_VERSION} --cni=calico --driver=none --install-addons=false --force