mirror of
https://github.com/containers/podman
synced 2024-10-20 17:23:30 +00:00
4fa1fce930
Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>
241 lines
9.5 KiB
Bash
241 lines
9.5 KiB
Bash
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# Library of common, shared utility functions. This file is intended
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# to be sourced by other scripts, not called directly.
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# BEGIN Global export of all variables
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set -a
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# Due to differences across platforms and runtime execution environments,
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# handling of the (otherwise) default shell setup is non-uniform. Rather
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# than attempt to workaround differences, simply force-load/set required
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# items every time this library is utilized.
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_waserrexit=0
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if [[ "$SHELLOPTS" =~ errexit ]]; then _waserrexit=1; fi
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set +e # Assumed in F33 for setting global vars
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source /etc/profile
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source /etc/environment
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if [[ -r "/etc/ci_environment" ]]; then source /etc/ci_environment; fi
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USER="$(whoami)"
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HOME="$(getent passwd $USER | cut -d : -f 6)"
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# Some platforms set and make this read-only
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[[ -n "$UID" ]] || \
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UID=$(getent passwd $USER | cut -d : -f 3)
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if ((_waserrexit)); then set -e; fi
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# During VM Image build, the 'containers/automation' installation
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# was performed. The final step of installation sets the library
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# location $AUTOMATION_LIB_PATH in /etc/environment or in the
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# default shell profile depending on distribution.
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# shellcheck disable=SC2154
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if [[ -n "$AUTOMATION_LIB_PATH" ]]; then
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# shellcheck source=/usr/share/automation/lib/common_lib.sh
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source $AUTOMATION_LIB_PATH/common_lib.sh
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else
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(
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echo "WARNING: It does not appear that containers/automation was installed."
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echo " Functionality of most of this library will be negatively impacted"
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echo " This ${BASH_SOURCE[0]} was loaded by ${BASH_SOURCE[1]}"
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) > /dev/stderr
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fi
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OS_RELEASE_ID="$(source /etc/os-release; echo $ID)"
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# GCE image-name compatible string representation of distribution _major_ version
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OS_RELEASE_VER="$(source /etc/os-release; echo $VERSION_ID | tr -d '.')"
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# Combined to ease some usage
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OS_REL_VER="${OS_RELEASE_ID}-${OS_RELEASE_VER}"
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# This is normally set from .cirrus.yml but default is necessary when
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# running under hack/get_ci_vm.sh since it cannot infer the value.
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DISTRO_NV="${DISTRO_NV:-$OS_REL_VER}"
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# Essential default paths, many are overridden when executing under Cirrus-CI
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GOPATH="${GOPATH:-/var/tmp/go}"
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if type -P go &> /dev/null
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then
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# Cirrus-CI caches $GOPATH contents
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export GOCACHE="${GOCACHE:-$GOPATH/cache/go-build}"
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# called processes like `make` and other tools need these vars.
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eval "export $(go env)"
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# Ensure compiled tooling is reachable
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PATH="$PATH:$GOPATH/bin:$HOME/.local/bin"
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fi
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CIRRUS_WORKING_DIR="${CIRRUS_WORKING_DIR:-$(realpath $(dirname ${BASH_SOURCE[0]})/../../)}"
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GOSRC="${GOSRC:-$CIRRUS_WORKING_DIR}"
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PATH="$HOME/bin:/usr/local/bin:$PATH"
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LD_LIBRARY_PATH="/usr/local/lib${LD_LIBRARY_PATH:+:${LD_LIBRARY_PATH}}"
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# Saves typing / in case location ever moves
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SCRIPT_BASE=${SCRIPT_BASE:-./contrib/cirrus}
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# Downloaded, but not installed packages.
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PACKAGE_DOWNLOAD_DIR=/var/cache/download
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# Log remote-client system test server output here
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PODMAN_SERVER_LOG=$CIRRUS_WORKING_DIR/server.log
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# Defaults when not running under CI
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export CI="${CI:-false}"
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CIRRUS_CI="${CIRRUS_CI:-false}"
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DEST_BRANCH="${DEST_BRANCH:-master}"
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CONTINUOUS_INTEGRATION="${CONTINUOUS_INTEGRATION:-false}"
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CIRRUS_REPO_NAME=${CIRRUS_REPO_NAME:-podman}
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# N/B: CIRRUS_BASE_SHA is empty on branch and tag push.
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CIRRUS_BASE_SHA=${CIRRUS_BASE_SHA:-${CIRRUS_LAST_GREEN_CHANGE:-YOU_FOUND_A_BUG}}
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CIRRUS_BUILD_ID=${CIRRUS_BUILD_ID:-$RANDOM$(date +%s)} # must be short and unique
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# The starting place for linting and code validation
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EPOCH_TEST_COMMIT="$CIRRUS_BASE_SHA"
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# Regex defining all CI-related env. vars. necessary for all possible
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# testing operations on all platforms and versions. This is necessary
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# to avoid needlessly passing through global/system values across
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# contexts, such as host->container or root->rootless user
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PASSTHROUGH_ENV_RE='(^CI.*)|(^CIRRUS)|(^DISTRO_NV)|(^GOPATH)|(^GOCACHE)|(^GOSRC)|(^SCRIPT_BASE)|(CGROUP_MANAGER)|(OCI_RUNTIME)|(^TEST.*)|(^PODBIN_NAME)|(^PRIV_NAME)|(^ALT_NAME)|(^ROOTLESS_USER)|(SKIP_USERNS)|(.*_NAME)|(.*_FQIN)'
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# Unsafe env. vars for display
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SECRET_ENV_RE='(ACCOUNT)|(GC[EP]..+)|(SSH)|(PASSWORD)|(TOKEN)'
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# Type of filesystem used for cgroups
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CG_FS_TYPE="$(stat -f -c %T /sys/fs/cgroup)"
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# Set to 1 in all podman container images
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CONTAINER="${CONTAINER:-0}"
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# END Global export of all variables
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set +a
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lilto() { err_retry 8 1000 "" "$@"; } # just over 4 minutes max
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bigto() { err_retry 7 5670 "" "$@"; } # 12 minutes max
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# Print shell-escaped variable=value pairs, one per line, based on
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# variable name matching a regex. This is intended to catch
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# variables being passed down from higher layers, like Cirrus-CI.
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passthrough_envars(){
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local xchars
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local envname
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local envval
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# Avoid values containing entirely punctuation|control|whitespace
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xchars='[:punct:][:cntrl:][:space:]'
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warn "Will pass env. vars. matching the following regex:
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$PASSTHROUGH_ENV_RE"
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for envname in $(awk 'BEGIN{for(v in ENVIRON) print v}' | \
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grep -Ev "SETUP_ENVIRONMENT" | \
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grep -Ev "$SECRET_ENV_RE" | \
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grep -E "$PASSTHROUGH_ENV_RE"); do
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envval="${!envname}"
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[[ -n $(tr -d "$xchars" <<<"$envval") ]] || continue
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# Properly escape values to prevent injection
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printf -- "$envname=%q\n" "$envval"
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done
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}
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setup_rootless() {
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req_env_vars ROOTLESS_USER GOPATH GOSRC SECRET_ENV_RE
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local rootless_uid
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local rootless_gid
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local env_var_val
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# Only do this once; established by setup_environment.sh
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# shellcheck disable=SC2154
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if passwd --status $ROOTLESS_USER
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then
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msg "Updating $ROOTLESS_USER user permissions on possibly changed libpod code"
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chown -R $ROOTLESS_USER:$ROOTLESS_USER "$GOPATH" "$GOSRC"
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return 0
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fi
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msg "************************************************************"
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msg "Setting up rootless user '$ROOTLESS_USER'"
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msg "************************************************************"
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cd $GOSRC || exit 1
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# Guarantee independence from specific values
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rootless_uid=$[RANDOM+1000]
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rootless_gid=$[RANDOM+1000]
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msg "creating $rootless_uid:$rootless_gid $ROOTLESS_USER user"
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groupadd -g $rootless_gid $ROOTLESS_USER
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useradd -g $rootless_gid -u $rootless_uid --no-user-group --create-home $ROOTLESS_USER
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chown -R $ROOTLESS_USER:$ROOTLESS_USER "$GOPATH" "$GOSRC"
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msg "creating ssh key pair for $USER"
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[[ -r "$HOME/.ssh/id_rsa" ]] || \
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ssh-keygen -P "" -f "$HOME/.ssh/id_rsa"
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msg "Allowing ssh key for $ROOTLESS_USER"
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(umask 077 && mkdir "/home/$ROOTLESS_USER/.ssh")
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chown -R $ROOTLESS_USER:$ROOTLESS_USER "/home/$ROOTLESS_USER/.ssh"
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install -o $ROOTLESS_USER -g $ROOTLESS_USER -m 0600 \
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"$HOME/.ssh/id_rsa.pub" "/home/$ROOTLESS_USER/.ssh/authorized_keys"
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# Makes debugging easier
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cat /root/.ssh/authorized_keys >> "/home/$ROOTLESS_USER/.ssh/authorized_keys"
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msg "Configuring subuid and subgid"
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grep -q "${ROOTLESS_USER}" /etc/subuid || \
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echo "${ROOTLESS_USER}:$[rootless_uid * 100]:65536" | \
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tee -a /etc/subuid >> /etc/subgid
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msg "Ensure the ssh daemon is up and running within 5 minutes"
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systemctl start sshd
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lilto ssh $ROOTLESS_USER@localhost \
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-o UserKnownHostsFile=/dev/null \
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-o StrictHostKeyChecking=no \
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-o CheckHostIP=no true
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}
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install_test_configs() {
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echo "Installing cni config, policy and registry config"
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req_env_vars GOSRC SCRIPT_BASE
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cd $GOSRC || exit 1
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install -v -D -m 644 ./cni/87-podman-bridge.conflist /etc/cni/net.d/
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# This config must always sort last in the list of networks (podman picks first one
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# as the default). This config prevents allocation of network address space used
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# by default in google cloud. https://cloud.google.com/vpc/docs/vpc#ip-ranges
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install -v -D -m 644 $SCRIPT_BASE/99-do-not-use-google-subnets.conflist /etc/cni/net.d/
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install -v -D -m 644 ./test/registries.conf /etc/containers/
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}
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# Remove all files provided by the distro version of podman.
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# All VM cache-images used for testing include the distro podman because (1) it's
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# required for podman-in-podman testing and (2) it somewhat simplifies the task
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# of pulling in necessary prerequisites packages as the set can change over time.
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# For general CI testing however, calling this function makes sure the system
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# can only run the compiled source version.
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remove_packaged_podman_files() {
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echo "Removing packaged podman files to prevent conflicts with source build and testing."
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req_env_vars OS_RELEASE_ID
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# If any binaries are resident they could cause unexpected pollution
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for unit in io.podman.service io.podman.socket
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do
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for state in enabled active
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do
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if systemctl --quiet is-$state $unit
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then
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echo "Warning: $unit found $state prior to packaged-file removal"
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systemctl --quiet disable $unit || true
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systemctl --quiet stop $unit || true
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fi
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done
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done
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if [[ "$OS_RELEASE_ID" =~ "ubuntu" ]]
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then
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LISTING_CMD="dpkg-query -L podman"
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else
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LISTING_CMD="rpm -ql podman"
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fi
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# yum/dnf/dpkg may list system directories, only remove files
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$LISTING_CMD | while read fullpath
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do
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# Sub-directories may contain unrelated/valuable stuff
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if [[ -d "$fullpath" ]]; then continue; fi
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ooe.sh rm -vf "$fullpath"
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done
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# Be super extra sure and careful vs performant and completely safe
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sync && echo 3 > /proc/sys/vm/drop_caches || true
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}
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