mirror of
https://github.com/jupyter/docker-stacks.git
synced 2025-10-11 20:12:58 +00:00
start.sh: tests, docs, and refinements
This commit is contained in:
Erik Sundell
@@ -12,9 +12,8 @@ else
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cmd=( "$@" )
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fi
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# The run-hooks function looks for .sh scripts and executable files
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# - .sh scripts will be sourced
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# - executable files (+x) will be executed
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# The run-hooks function looks for .sh scripts to source and executable files to
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# run within a passed directory.
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run-hooks () {
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if [[ ! -d "${1}" ]] ; then
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return
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@@ -41,99 +40,101 @@ run-hooks () {
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}
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# NOTE: This hook will run as the user the container was started with!
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run-hooks /usr/local/bin/start-notebook.d
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# If we have started the container as the root user, then we have permission to
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# manipulate user identities and storage file permissions before we start the
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# server as a non-root user.
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# If the container started as the root user, then we have permission to refit
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# the jovyan user, and ensure file permissions, grant sudo rights, and such
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# things before we run the command passed to start.sh as the desired user
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# (NB_USER).
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#
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# Environment variables of relevance:
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# - NB_UID: the user we want to run as, uniquely identified by an id
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# - NB_USER: the username and associated home folder we want for our user
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# - NB_GID: a group we want our user to belong to, uniquely identified by an id
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# - NB_GROUP: the groupname we want for the group
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if [ "$(id -u)" == 0 ] ; then
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# Optionally ensure the user we want to run as (NB_UID) get filesystem
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# ownership of it's home folder and additional folders. This can be relevant
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# for attached NFS storage.
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#
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# Environment variables:
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# - NB_USER: the desired username and associated home folder
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# - NB_UID: the desired user id
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# - NB_GID: a group id we want our user to belong to
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# - NB_GROUP: the groupname we want for the group
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# - GRANT_SUDO: a boolean ("1" or "yes") to grant the user sudo rights
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# - CHOWN_HOME: a boolean ("1" or "yes") to chown the user's home folder
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# - CHOWN_EXTRA: a comma separated list of paths to chown
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# - CHOWN_HOME_OPTS / CHOWN_EXTRA_OPTS: arguments to the chown command
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if [[ "${CHOWN_HOME}" == "1" || "${CHOWN_HOME}" == "yes" ]]; then
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echo "Updating ownership of /home/${NB_USER} to ${NB_UID}:${NB_GID} with options '${CHOWN_HOME_OPTS}'"
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# shellcheck disable=SC2086
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chown $CHOWN_HOME_OPTS "${NB_UID}:${NB_GID}" "/home/${NB_USER}"
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fi
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if [ -n "${CHOWN_EXTRA}" ]; then
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for extra_dir in $(echo "${CHOWN_EXTRA}" | tr ',' ' '); do
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echo "Updating ownership of ${extra_dir} to ${NB_UID}:${NB_GID} with options '${CHOWN_EXTRA_OPTS}'"
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# shellcheck disable=SC2086
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chown ${CHOWN_EXTRA_OPTS} "${NB_UID}:${NB_GID}" "${extra_dir}"
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done
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fi
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# - CHOWN_HOME_OPTS / CHOWN_EXTRA_OPTS: arguments to the chown commands
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# Update the jovyan identity to get desired username and its associated home folder.
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# Refit the jovyan user to the desired the user (NB_USER)
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if id jovyan &> /dev/null ; then
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if ! usermod --home "/home/${NB_USER}" --login "${NB_USER}" jovyan 2>&1 | grep "no changes" > /dev/null; then
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echo "Updated the jovyan user:"
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echo "username: jovyan -> ${NB_USER}"
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echo "home dir location: /home/jovyan -> /home/${NB_USER}"
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echo "- username: jovyan -> ${NB_USER}"
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echo "- home dir: /home/jovyan -> /home/${NB_USER}"
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fi
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elif ! id -u "${NB_USER}" &> /dev/null; then
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echo "ERROR: Neither the jovyan user or '$NB_USER' exists."
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echo " This could be the result of stopping and starting, the"
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echo " container with a different NB_USER environment variable."
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exit 1
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fi
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# Ensure the desired user (NB_USER) gets its desired user id (NB_UID) and is
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# a member of the desired group (NB_GROUP, NB_GID)
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if [ "${NB_UID}" != "$(id -u "${NB_USER}")" ] || [ "${NB_GID}" != "$(id -g "${NB_USER}")" ]; then
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echo "Update ${NB_USER}'s UID:GID to ${NB_UID}:${NB_GID}"
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# Ensure the desired group's existence
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if [ "${NB_GID}" != "$(id -g "${NB_USER}")" ]; then
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groupadd --force --gid "${NB_GID}" --non-unique "${NB_GROUP:-${NB_USER}}"
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fi
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# Recreate the desired user as we want it
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userdel "${NB_USER}"
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useradd --home "/home/${NB_USER}" --uid "${NB_UID}" --gid "${NB_GID}" --groups 100 --no-log-init "${NB_USER}"
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fi
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# Update env vars set during image build with the current NB_USER value
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export XDG_CACHE_HOME=/home/$NB_USER/.cache
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# For non-jovyan username's, populate their home directory with the jovyan's
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# home directory as a fallback if they don't have one mounted already.
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# Move or symlink the jovyan home directory to the desired users home
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# directory if it doesn't already exist, and update the current working
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# directory to the new location if needed.
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if [[ "${NB_USER}" != "jovyan" ]]; then
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if [[ ! -e "/home/${NB_USER}" ]]; then
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echo "Attempting to copy /home/jovyan to /home/${NB_USER}..."
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mkdir "/home/${NB_USER}"
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if cp -a /home/jovyan/. "/home/${NB_USER}/"; then
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echo "Done"
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echo "Success!"
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else
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echo "Failed. Attempting to symlink /home/jovyan to /home/${NB_USER}..."
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ln -s /home/jovyan "/home/${NB_USER}" && echo "Done"
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echo "Failed!"
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echo "Attempting to symlink /home/jovyan to /home/${NB_USER}..."
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if ln -s /home/jovyan "/home/${NB_USER}"; then
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echo "Success!"
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else
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echo "Failed!"
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fi
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fi
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# Ensure the current working directory is updated
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fi
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# Ensure the current working directory is updated to the new path
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if [[ "${PWD}/" == "/home/jovyan/"* ]]; then
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newcwd="/home/${NB_USER}/${PWD:13}"
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echo "Changing working directory to ${newcwd}"
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cd "${newcwd}"
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new_wd="/home/${NB_USER}/${PWD:13}"
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echo "Changing working directory to ${new_wd}"
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cd "${new_wd}"
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fi
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fi
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# Ensure NB_USER gets the NB_UID user id and is a member of the NB_GID group
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if [ "${NB_UID}" != "$(id -u "${NB_USER}")" ] || [ "${NB_GID}" != "$(id -g "${NB_USER}")" ]; then
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echo "Update ${NB_USER}'s UID:GID to ${NB_UID}:${NB_GID}"
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# Ensure the group's existence
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if [ "${NB_GID}" != "$(id -g "${NB_USER}")" ]; then
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groupadd --force --gid "$NB_GID" --non-unique "${NB_GROUP:-${NB_USER}}"
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# Optionally ensure the desired user get filesystem ownership of it's home
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# folder and/or additional folders
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if [[ "${CHOWN_HOME}" == "1" || "${CHOWN_HOME}" == "yes" ]]; then
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echo "Ensuring /home/${NB_USER} is owned by ${NB_UID}:${NB_GID} ${CHOWN_HOME_OPTS:+chown options: ${CHOWN_HOME_OPTS}}"
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# shellcheck disable=SC2086
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chown ${CHOWN_HOME_OPTS} "${NB_UID}:${NB_GID}" "/home/${NB_USER}"
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fi
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# Recreate the user as we want it
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userdel "${NB_USER}"
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useradd --home "/home/${NB_USER}" --uid "${NB_UID}" --gid "${NB_GID}" --groups 100 --no-log-init "${NB_USER}"
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if [ -n "${CHOWN_EXTRA}" ]; then
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for extra_dir in $(echo "${CHOWN_EXTRA}" | tr ',' ' '); do
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echo "Ensuring ${extra_dir} is owned by ${NB_UID}:${NB_GID} ${CHOWN_HOME_OPTS:+(chown options: ${CHOWN_HOME_OPTS})}"
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# shellcheck disable=SC2086
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chown ${CHOWN_EXTRA_OPTS} "${NB_UID}:${NB_GID}" "${extra_dir}"
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done
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fi
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# Conditionally enable passwordless sudo usage for the jovyan user
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if [[ "${GRANT_SUDO}" == "1" || "${GRANT_SUDO}" == 'yes' ]]; then
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echo "Granting ${NB_USER} passwordless sudo rights!"
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echo "${NB_USER} ALL=(ALL) NOPASSWD:ALL" > /etc/sudoers.d/added-by-start-script
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fi
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# Update potentially outdated environment variables since image build
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export XDG_CACHE_HOME=/home/$NB_USER/.cache
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# Ensure that the initial environment that this container is started with
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# is preserved when we run transition from running as root to running as
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# NB_USER.
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# Notes on how we ensure that the environment that this container is started
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# with is preserved (except vars listen in JUPYTER_ENV_VARS_TO_UNSET) when
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# we transition from running as root to running as NB_USER.
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#
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# - We use the sudo command to execute the command as NB_USER. But, what
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# - We use `sudo` to execute the command as NB_USER. What then
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# happens to the environment will be determined by configuration in
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# /etc/sudoers and /etc/sudoers.d/* as well as flags we pass to the sudo
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# command. The behavior can be inspected with `sudo -V` run as root.
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@@ -141,19 +142,26 @@ if [ "$(id -u)" == 0 ] ; then
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# ref: `man sudo` https://linux.die.net/man/8/sudo
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# ref: `man sudoers` https://www.sudo.ws/man/1.8.15/sudoers.man.html
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#
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# - We use the `--preserve-env` flag to pass through most environment, but
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# understand that exceptions are caused by the sudoers configuration:
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# `env_delete`, `env_check`, and `secure_path`.
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# - We use the `--preserve-env` flag to pass through most environment
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# variables, but understand that exceptions are caused by the sudoers
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# configuration: `env_delete`, `env_check`, and `secure_path`.
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#
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# - We reduce the `env_delete` list of default variables to be deleted by
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# default which would ignore the `--preserve-env` flag and `env_keep`
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# - We use the `--set-home` flag to set the HOME variable appropriatly.
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#
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# - We reduce the `env_delete` list of default variables to be deleted. It
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# has higher priority than the `--preserve-env` flag and `env_keep`
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# configuration.
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#
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# - We manage the PATH variable specifically as `secure_path` is set by
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# default in /etc/sudoers and would override the PATH variable. So we
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# disable that default.
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# - We disable the `secure_path` which is set by default in /etc/sudoers as
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# it would override the PATH variable.
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echo 'Defaults !secure_path' > /etc/sudoers.d/added-by-start-script
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echo 'Defaults env_delete -= "PATH LD_* PYTHON*"' >> /etc/sudoers.d/added-by-start-script
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echo 'Defaults !secure_path' >> /etc/sudoers.d/added-by-start-script
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# Optionally grant passwordless sudo rights for the desired user
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if [[ "$GRANT_SUDO" == "1" || "$GRANT_SUDO" == 'yes' ]]; then
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echo "Granting $NB_USER passwordless sudo rights!"
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echo "$NB_USER ALL=(ALL) NOPASSWD:ALL" >> /etc/sudoers.d/added-by-start-script
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fi
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# NOTE: This hook is run as the root user!
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run-hooks /usr/local/bin/before-notebook.d
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@@ -161,48 +169,49 @@ if [ "$(id -u)" == 0 ] ; then
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echo "Running as ${NB_USER}:" "${cmd[@]}"
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exec sudo --preserve-env --set-home --user "${NB_USER}" "${cmd[@]}"
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# The container didn't start as the root user.
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# The container didn't start as the root user, so we will have to act as the
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# user we started as.
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else
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if [[ "${NB_UID}" == "$(id -u jovyan 2>/dev/null)" && "${NB_GID}" == "$(id -g jovyan 2>/dev/null)" ]]; then
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# User is not attempting to override user/group via environment
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# variables, but they could still have overridden the uid/gid that
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# container runs as. Check that the user has an entry in the passwd
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# file and if not add an entry.
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STATUS=0 && whoami &> /dev/null || STATUS=$? && true
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if [[ "${STATUS}" != "0" ]]; then
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if [[ -w /etc/passwd ]]; then
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echo "Adding passwd file entry for $(id -u)"
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sed -e "s/^jovyan:/nayvoj:/" /etc/passwd > /tmp/passwd
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echo "jovyan:x:$(id -u):$(id -g):,,,:/home/jovyan:/bin/bash" >> /tmp/passwd
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cat /tmp/passwd > /etc/passwd
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rm /tmp/passwd
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else
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echo "WARNING: Container must be run with group 'root' to update passwd file"
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# Warn about misconfiguration of: desired username, user id, or group id
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if [[ -n "${NB_USER}" && "${NB_USER}" != "$(id -un)" ]]; then
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echo "WARNING: container must be started as root to change the desired user's name with NB_USER!"
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fi
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fi
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# Warn if the user isn't going to be able to write files to ${HOME}.
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if [[ ! -w /home/jovyan ]]; then
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echo "WARNING: Container must be run with group 'users' to update files"
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fi
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else
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# Warn if looks like user want to override uid/gid but hasn't
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# run the container as root.
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if [[ -n "${NB_UID}" && "${NB_UID}" != "$(id -u)" ]]; then
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echo "Container must be run as root to set NB_UID to ${NB_UID}"
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echo "WARNING: container must be started as root to change the desired user's id with NB_UID!"
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fi
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if [[ -n "${NB_GID}" && "${NB_GID}" != "$(id -g)" ]]; then
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echo "Container must be run as root to set NB_GID to ${NB_GID}"
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fi
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echo "WARNING: container must be started as root to change the desired user's group id with NB_GID!"
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fi
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# Warn about a probable misconfiguration of sudo
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# Warn about misconfiguration of: granting sudo rights
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if [[ "${GRANT_SUDO}" == "1" || "${GRANT_SUDO}" == 'yes' ]]; then
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echo "WARNING: container must be started up as root to grant sudo permissions."
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echo "WARNING: container must be started as root to grant sudo permissions!"
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fi
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# Attempt to ensure the user uid we currently run as has a named entry in
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# the /etc/passwd file, as it avoids software crashing on hard assumptions
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# on such entry. Writing to the /etc/passwd was allowed for the root group
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# from the Dockerfile during build.
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#
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# ref: https://github.com/jupyter/docker-stacks/issues/552
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if ! whoami &> /dev/null; then
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if [[ -w /etc/passwd ]]; then
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sed --in-place "s/^jovyan:/nayvoj:/" /etc/passwd
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echo "Renamed old jovyan user to nayvoj (1000:100)"
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echo "jovyan:x:$(id -u):$(id -g):,,,:/home/jovyan:/bin/bash" >> /etc/passwd
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echo "Added new jovyan user ($(id -u):$(id -g))"
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else
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echo "WARNING: container must be started with group 'root' (0) to add a user entry in /etc/passwd!"
|
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fi
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fi
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# Warn if the user isn't able to write files to ${HOME}
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if [[ ! -w /home/jovyan ]]; then
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echo "WARNING: container must be started with group 'users' (100) to be allowed to write to /home/jovyan!"
|
||||
fi
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# NOTE: This hook is run as the user we started the container as!
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run-hooks /usr/local/bin/before-notebook.d
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echo "Executing the command:" "${cmd[@]}"
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exec "${cmd[@]}"
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@@ -44,7 +44,8 @@ def test_uid_change(container):
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command=["start.sh", "bash", "-c", "id && touch /opt/conda/test-file"],
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)
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# usermod is slow so give it some time
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c.wait(timeout=120)
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rv = c.wait(timeout=120)
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assert rv == 0 or rv["StatusCode"] == 0
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assert "uid=1010(jovyan)" in c.logs(stdout=True).decode("utf-8")
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||||
@@ -56,7 +57,8 @@ def test_gid_change(container):
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environment=["NB_GID=110"],
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command=["start.sh", "id"],
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)
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c.wait(timeout=10)
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rv = c.wait(timeout=10)
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assert rv == 0 or rv["StatusCode"] == 0
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logs = c.logs(stdout=True).decode("utf-8")
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assert "gid=110(jovyan)" in logs
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assert "groups=110(jovyan),100(users)" in logs
|
||||
@@ -77,7 +79,9 @@ def test_nb_user_change(container):
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time.sleep(10)
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LOGGER.info(f"Checking if the user is changed to {nb_user} by the start script ...")
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output = running_container.logs(stdout=True).decode("utf-8")
|
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assert f"Set username to: {nb_user}" in output, f"User is not changed to {nb_user}"
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||||
assert (
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||||
f"username: jovyan -> {nb_user}" in output
|
||||
), f"User is not changed to {nb_user}"
|
||||
|
||||
LOGGER.info(f"Checking {nb_user} id ...")
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||||
command = "id"
|
||||
@@ -108,21 +112,30 @@ def test_nb_user_change(container):
|
||||
|
||||
|
||||
def test_chown_extra(container):
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||||
"""Container should change the UID/GID of CHOWN_EXTRA."""
|
||||
"""Container should change the UID/GID of a comma separated
|
||||
CHOWN_EXTRA list of folders."""
|
||||
c = container.run(
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||||
tty=True,
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||||
user="root",
|
||||
environment=[
|
||||
"NB_UID=1010",
|
||||
"NB_GID=101",
|
||||
"CHOWN_EXTRA=/opt/conda",
|
||||
"CHOWN_EXTRA=/home/jovyan,/opt/conda/bin",
|
||||
"CHOWN_EXTRA_OPTS=-R",
|
||||
],
|
||||
command=["start.sh", "bash", "-c", "stat -c '%n:%u:%g' /opt/conda/LICENSE.txt"],
|
||||
command=[
|
||||
"start.sh",
|
||||
"bash",
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||||
"-c",
|
||||
"stat -c '%n:%u:%g' /home/jovyan/.bashrc /opt/conda/bin/jupyter",
|
||||
],
|
||||
)
|
||||
# chown is slow so give it some time
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||||
c.wait(timeout=120)
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||||
assert "/opt/conda/LICENSE.txt:1010:101" in c.logs(stdout=True).decode("utf-8")
|
||||
rv = c.wait(timeout=120)
|
||||
assert rv == 0 or rv["StatusCode"] == 0
|
||||
logs = c.logs(stdout=True).decode("utf-8")
|
||||
assert "/home/jovyan/.bashrc:1010:101" in logs
|
||||
assert "/opt/conda/bin/jupyter:1010:101" in logs
|
||||
|
||||
|
||||
def test_chown_home(container):
|
||||
@@ -131,18 +144,19 @@ def test_chown_home(container):
|
||||
c = container.run(
|
||||
tty=True,
|
||||
user="root",
|
||||
environment=["CHOWN_HOME=yes", "CHOWN_HOME_OPTS=-R"],
|
||||
command=[
|
||||
"start.sh",
|
||||
"bash",
|
||||
"-c",
|
||||
"chown root:root /home/jovyan && ls -alsh /home",
|
||||
environment=[
|
||||
"CHOWN_HOME=yes",
|
||||
"CHOWN_HOME_OPTS=-R",
|
||||
"NB_USER=kitten",
|
||||
"NB_UID=1010",
|
||||
"NB_GID=101",
|
||||
],
|
||||
command=["start.sh", "bash", "-c", "stat -c '%n:%u:%g' /home/kitten/.bashrc"],
|
||||
)
|
||||
c.wait(timeout=120)
|
||||
assert "Changing ownership of /home/jovyan to 1000:100 with options '-R'" in c.logs(
|
||||
stdout=True
|
||||
).decode("utf-8")
|
||||
rv = c.wait(timeout=120)
|
||||
assert rv == 0 or rv["StatusCode"] == 0
|
||||
logs = c.logs(stdout=True).decode("utf-8")
|
||||
assert "/home/kitten/.bashrc:1010:101" in logs
|
||||
|
||||
|
||||
def test_sudo(container):
|
||||
@@ -224,3 +238,29 @@ def test_container_not_delete_bind_mount(container, tmp_path):
|
||||
assert rv == 0 or rv["StatusCode"] == 0
|
||||
assert p.read_text() == "some-content"
|
||||
assert len(list(tmp_path.iterdir())) == 1
|
||||
|
||||
|
||||
@pytest.mark.skip(reason="not yet implemented; TODO: cherry-pick b44b7ab")
|
||||
def test_jupyter_env_vars_to_unset_as_root(container):
|
||||
"""Environment variables names listed in JUPYTER_ENV_VARS_TO_UNSET
|
||||
should be unset in the final environment."""
|
||||
c = container.run(
|
||||
tty=True,
|
||||
user="root",
|
||||
environment=[
|
||||
"JUPYTER_ENV_VARS_TO_UNSET=SECRET_ANIMAL,UNUSED_ENV,SECRET_FRUIT",
|
||||
"FRUIT=bananas",
|
||||
"SECRET_FRUIT=mango",
|
||||
"SECRET_ANIMAL=cats",
|
||||
],
|
||||
command=[
|
||||
"start.sh",
|
||||
"bash",
|
||||
"-c",
|
||||
"echo I like $FRUIT and ${SECRET_FRUIT:-stuff}, and love ${SECRET_LOVE:-to keep secrets}!",
|
||||
],
|
||||
)
|
||||
rv = c.wait(timeout=10)
|
||||
assert rv == 0 or rv["StatusCode"] == 0
|
||||
logs = c.logs(stdout=True).decode("utf-8")
|
||||
assert "I like bananas and stuff, and love to keep secrets!" in logs
|
||||
|
||||
Reference in New Issue
Block a user