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ci: add support for VM_DRIVER=podman to scripts/minikube.sh
When running on AWE EC2 virtual-machines, we'll use Podman instead of installing a VM. The "none" driver might work as well, but it requires additional dependencies to be installed, which may change over time with new minikube or Kubernetes releases. Hopefully the Podman driver is less affected with changes in dependencies. Depends-on: #3419 Closes: #3415 Signed-off-by: Niels de Vos <ndevos@redhat.com>
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@ -22,7 +22,7 @@ function copy_image_to_cluster() {
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if [ -z "$(${CONTAINER_CMD} images -q "${build_image}")" ]; then
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${CONTAINER_CMD} pull "${build_image}"
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fi
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if [[ "${VM_DRIVER}" == "none" ]]; then
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if [[ "${VM_DRIVER}" == "none" ]] || [[ "${VM_DRIVER}" == "podman" ]]; then
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${CONTAINER_CMD} tag "${build_image}" "${final_image}"
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return
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fi
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@ -139,6 +139,36 @@ function validate_sidecar() {
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done
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}
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# install_podman_wrapper creates /usr/bin/podman.wrapper which adds /sys
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# filesystem mount points when a privileged container is started. This makes it
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# possible to map RBD devices in the container that minikube creates when
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# VM_DRIVER=podman is used.
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function install_podman_wrapper() {
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if [[ -e /usr/bin/podman.wrapper ]]
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then
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return
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fi
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# disabled single quoted check, the script should be created as is
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# shellcheck disable=SC2016
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echo '#!/bin/sh
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if [[ "${1}" = run ]]
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then
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if (echo "${@}" | grep -q privileged)
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then
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shift
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exec /usr/bin/podman.real run -v /sys:/sys:rw -v /dev:/dev:rw --systemd=true "${@}"
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fi
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fi
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exec /usr/bin/podman.real "${@}"
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' > /usr/bin/podman.wrapper
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chmod +x /usr/bin/podman.wrapper
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mv /usr/bin/podman /usr/bin/podman.real
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ln -s podman.wrapper /usr/bin/podman
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}
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# Storage providers and the default storage class is not needed for Ceph-CSI
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# testing. In order to reduce resources and potential conflicts between storage
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# plugins, disable them.
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@ -185,7 +215,7 @@ K8S_FEATURE_GATES=${K8S_FEATURE_GATES:-""}
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# kubelet.resolv-conf needs to point to a file, not a symlink
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# the default minikube VM has /etc/resolv.conf -> /run/systemd/resolve/resolv.conf
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RESOLV_CONF='/run/systemd/resolve/resolv.conf'
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if [[ "${VM_DRIVER}" == "none" ]] && [[ ! -e "${RESOLV_CONF}" ]]; then
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if { [[ "${VM_DRIVER}" == "none" ]] || [[ "${VM_DRIVER}" == "podman" ]]; } && [[ ! -e "${RESOLV_CONF}" ]]; then
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# in case /run/systemd/resolve/resolv.conf does not exist, use the
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# standard /etc/resolv.conf (with symlink resolved)
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RESOLV_CONF="$(readlink -f /etc/resolv.conf)"
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@ -216,6 +246,8 @@ up)
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if [[ "${VM_DRIVER}" == "none" ]]; then
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mkdir -p "$HOME"/.kube "$HOME"/.minikube
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install_kubectl
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elif [[ "${VM_DRIVER}" == "podman" ]]; then
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install_podman_wrapper
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fi
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disable_storage_addons
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@ -234,11 +266,14 @@ up)
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# create a link so the default dataDirHostPath will work for this
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# environment
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if [[ "${VM_DRIVER}" != "none" ]]; then
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if [[ "${VM_DRIVER}" != "none" ]] && [[ "${VM_DRIVER}" != "podman" ]]; then
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wait_for_ssh
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# shellcheck disable=SC2086
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${minikube} ssh "sudo mkdir -p /mnt/${DISK}/var/lib/rook;sudo ln -s /mnt/${DISK}/var/lib/rook /var/lib/rook"
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fi
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if [[ "${VM_DRIVER}" = "podman" ]]; then
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${minikube} ssh "sudo mount -oremount,rw /sys"
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fi
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${minikube} kubectl -- cluster-info
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;;
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down)
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