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Change Log

2 - centos-7

Summary of release changes.

2.6.1 - 2019-09-21

  • Deprecate Makefile target logs-delayed; replaced with logsdef.
  • Updates openssh package to 7.4p1-21.el7.
  • Updates openssl package to 1.0.2k-19.el7.
  • Updates sudo package to 1.8.23-4.el7.
  • Updates yum-plugin-versionlock package to 1.1.31-52.el7.
  • Updates supervisord to 4.0.4.
  • Updates test/health_status helper script with for consistency.
  • Updates Makefile target logs to accept [OPTIONS] (e.g make -- logs -ft).
  • Updates healthcheck script; state file existence confirms bootstrap completion.
  • Updates system-timezone-wrapper to improve timer accuracy.
  • Updates scripts to explicitly check for a file when handling lock/state files.
  • Updates method used for returning current script.
  • Updates info/error output for consistency.
  • Updates healthcheck failure messages to remove EOL character that is rendered in status response.
  • Updates wrapper script; only emit "waiting on" info message if bootstrap hasn't completed.
  • Updates CHANGELOG.md to simplify maintenance.
  • Updates README.md to simplify contents and improve readability.
  • Updates README-short.txt to apply to all image variants.
  • Updates Dockerfile org.deathe.description metadata LABEL for consistency.
  • Updates ordering of Tags and respective Dockerfile links in README.md for readability.
  • Adds improved test workflow; added test-setup target to Makefile.
  • Adds Makefile target logsdef to handle deferred logs output within a target chain.
  • Adds exec proxy function to sshd-wrapper used to pass through nice.
  • Adds double quotes around value containing spaces.
  • Adds /docs directory for supplementary documentation and simplify README.
  • Fixes validation failure of 0 second --timeout value in test/health_status.
  • Removes ENABLE_SSHD_BOOTSTRAP from docker-compose example configuration.
  • Removes ENABLE_SSHD_WRAPPER from docker-compose example configuration.

2.6.0 - 2019-06-20

  • Deprecates SSH_AUTOSTART_SSHD, replaced with ENABLE_SSHD_WRAPPER.
  • Deprecates SSH_AUTOSTART_SSHD_BOOTSTRAP, replaced with ENABLE_SSHD_BOOTSTRAP.
  • Deprecates SSH_AUTOSTART_SUPERVISOR_STDOUT, replaced with ENABLE_SUPERVISOR_STDOUT.
  • Deprecates SSH_TIMEZONE, replaced with SYSTEM_TIMEZONE.
  • Updates source tag to CentOS 7.6.1810.
  • Updates supervisord to 4.0.3.
  • Updates default value of ENABLE_SUPERVISOR_STDOUT to false.
  • Updates sshd-bootstrap and sshd-wrapper configuration to send error log output to stderr.
  • Updates order of values in SSH/SFTP Details log output.
  • Updates bootstrap timer to use UTC date timestamps.
  • Updates bootstrap supervisord configuration file/priority to 20-sshd-bootstrap.conf/20.
  • Updates wrapper supervisord configuration file/priority to 50-sshd-wrapper.conf/50.
  • Adds reference to python-setuptools in README; removed in error.
  • Adds inspect, reload and top Makefile targets.
  • Adds improved lock/state file implementation in bootstrap and wrapper scripts.
  • Adds improved clean Makefile target; includes exited containers and dangling images.
  • Adds improved wait on bootstrap completion in wrapper script.
  • Adds system-timezone and system-timezone-wrapper to handle system time zone setup.
  • Adds system time zone validation to healthcheck.
  • Fixes port incrementation failures when installing systemd units via scmi.
  • Fixes etcd port registration failures when installing systemd units via scmi with the --register option.
  • Fixes binary paths in systemd unit files for compatibility with both EL and Ubuntu hosts.
  • Fixes use of printf binary instead of builtin in systemd unit files.
  • Fixes docker host connection status check in Makefile.
  • Fixes make clean error thrown when removing exited containers.
  • Removes support for long image tags (i.e. centos-7-2.x.x).
  • Removes system time zone setup from sshd-bootstrap.
  • Removes redundant directory test from sshd-bootstrap; state file ensures it's a one-shot process.

2.5.1 - 2019-02-28

  • Deprecates use of supervisor_stdout - the default value of SSH_AUTOSTART_SUPERVISOR_STDOUT will be switched to "false" in a future release.
  • Updates Dockerfile with combined ADD to reduce layer count in final image.
  • Fixes scmi installation error when using the --manager=systemd option on Ubuntu hosts.
  • Fixes issues with failure to install/uninstall systemd units installed with scmi.
  • Adds improvement to pull logic in systemd unit install template.
  • Adds docker-compose.yml to .dockerignore to reduce size of build context.
  • Adds docker-compose configuration example.
  • Adds SSH_AUTOSTART_SUPERVISOR_STDOUT to control startup of supervisor_stdout.
  • Adds drop-in configuration for supervisor_stdout in /etc/supervisord.d/00-supervisor_stdout.conf.
  • Adds improved healtchcheck, sshd-bootstrap and sshd-wrapper scripts.
  • Adds validation of SSH_INHERIT_ENVIRONMENT values.
  • Removes reference to python-setuptools from README as it's no longer installed.
  • Removes requirement of supervisor_stdout for output of supervisord logs to stdout.
  • Removes unnecessary configuration file /etc/sshd-bootstrap.conf.
  • Removes unnecessary environment file /etc/sshd-bootstrap.env.

2.5.0 - 2019-01-28

  • Updates openssl package to 1.0.2k-16.el7.
  • Updates sudo package to 1.8.23-3.el7.
  • Updates yum-plugin-versionlock package to 1.1.31-50.el7.
  • Updates supervisor to 3.3.5.
  • Updates validation for SSH_USER_ID to allow values in the system ID range.
  • Updates and restructures Dockerfile to reduce number of layers in image.
  • Updates container naming conventions for scmi making the node element optional.
  • Updates container naming conventions and readability of Makefile.
  • Updates docker logs output example in README document.
  • Updates README instructions following review.
  • Updates default HEALTHCHECK interval to 1 second from 0.5.
  • Replaces awk with native bash regex when testing sudo user's have NOPASSWD:ALL.
  • Fixes bootstrap errors regarding readonly PASSWORD_LENGTH.
  • Fixes issue with redacted password when using SSH_PASSWORD_AUTHENTICATION in combination with SSH_USER_FORCE_SFTP.
  • Fixes issue with unexpected published port in run templates when DOCKER_PORT_MAP_TCP_22 is set to an empty string or 0.
  • Fixes missing SSH_TIMEZONE from Makefile's install run template.
  • Fixes validation of SSH_TIMEZONE values - set to defaults with warning and abort on error.
  • Adds SSH_USER_PRIVATE_KEY to allow configuration of an RSA private key for SSH_USER.
  • Adds placeholder replacement of RELEASE_VERSION docker argument to systemd service unit template.
  • Adds error messages to healthcheck script and includes supervisord check.
  • Adds a short sleep after bootstrap Details to work-around missing output on CI service's host.
  • Adds port incrementation to Makefile's run template for container names with an instance suffix.
  • Adds consideration for event lag into test cases for unhealthy health_status events.
  • Adds feature to allow configuration of "root" SSH_USER.
  • Adds validation of SSH_SUDO values.
  • Removes use of /etc/services-config paths.
  • Removes fleet --manager option in the scmi installer.
  • Removes X-Fleet section from etcd register template unit-file.
  • Removes the unused group element from the default container name.
  • Removes the node element from the default container name.
  • Removes undocumented SSH_ROOT_PASSWORD from bootstrap process.

2.4.1 - 2018-11-10

  • Adds feature to set system time zone via SSH_TIMEZONE.
  • Adds feature to enable password authentication.
  • Adds default of removing insecure public key when enabling password authentication.

2.4.0 - 2018-08-12

  • Updates source tag to CentOS 7.5.1804.
  • Adds explicit user (root) for running supervisord.

2.3.2 - 2018-04-24

  • Updates supervisor to 3.3.4.
  • Adds feature to set SSH_USER_PASSWORD via a file path. e.g. Docker Swarm secrets.
  • Adds feature to set SSH_AUTHORIZED_KEYS via a file path. e.g. Docker Swarm config.

2.3.1 - 2018-01-12

  • Updates openssh package to openssh-7.4p1-13.el7_4.
  • Adds a .dockerignore file.
  • Deprecates use of the fleet --manager option in the scmi installer.

2.3.0 - 2017-10-06

  • Updates source tag to CentOS 7.4.1708.

2.2.4 - 2017-09-13

  • Updates supervisor to version 3.3.3.
  • Updates sudo package to sudo-1.8.6p7-23.el7_3.
  • Adds permissions to restrict access to the healthcheck script.
  • Fixes declaration of local readonly and array bash variables in SCMI scripts.
  • Fixes missing trailing newline in source vagrant insecure public key.
  • Fixes missing trailing newline for keys added to ~/.ssh/authorized_keys.

2.2.3 - 2017-06-14

  • Adds clearer, improved shpec test case output.
  • Updates supervisor to version 3.3.2.
  • Adds use of /var/lock/subsys/ (subsystem lock directory) for bootstrap lock files.
  • Adds a Docker healthcheck.

2.2.2 - 2017-05-24

  • Updates openssh package 6.6.1p1-35.el7_3.
  • Replaces deprecated Dockerfile MAINTAINER with a LABEL.
  • Adds a src directory for the image root files.
  • Adds wrapper functions to functional test cases.
  • Adds STARTUP_TIME variable for the logs-delayed Makefile target.

2.2.1 - 2017-02-21

  • Updates vim and openssh packages and the epel-release.
  • Fixes shpec test definition to allow make test to be interruptible.
  • Adds the openssl package (and it's dependency, make).
  • Adds README.md instruction to use docker pull before docker inspect on an image.

2.2.0 - 2016-12-19

  • Adds CentOS 7.3.1611 source tag.

2.1.5 - 2016-12-15

  • Adds updated sudo, openssh, yum-plugin-versionlock and xz packages.

  • Adds functional tests using shpec. To run all tests, install shpec and run with make test.

  • Adds support for running tests on Ubuntu. Note: May require some additional setup prevent warnings about locale.

    sudo locale-gen en_US.UTF-8; sudo dpkg-reconfigure locales
export LANG=en_US.UTF-8; unset LANGUAGE LC_ALL LC_CTYPE

  • Adds correction to examples and test usage of the sftp command.

  • Adds a "better practices" example of password hash generation in the README.md.

  • Adds minor code style changes to the Makefile.

2.1.4 - 2016-12-04

  • Adds correct Makefile usage instructions for 'build' target.
  • Adds info regarding NULL port values in Makefile help.
  • Removes requirement for gawk in the port handling functions for SCMI and the systemd template unit-file.
  • Adds reduced number of build steps to image which helps reduce final image size.
  • Adds -u parameter to sshd options to help reduce time spent doing DNS lookups during authentication.
  • Adds a change log (CHANGELOG.md).
  • Adds support for semantic version numbered tags.

2.1.3 - 2016-10-02

  • Adds Makefile help target with usage instructions.
  • Splits up the Makefile targets into internal and public types.
  • Adds correct scmi path in usage instructions.
  • Changes PACKAGE_PATH to DIST_PATH in line with the Makefile environment include. Not currently used by scmi but changing for consistency.
  • Changes DOCKER_CONTAINER_PARAMETERS_APPEND to DOCKER_CONTAINER_OPTS for usability. This is a potentially breaking change that could affect systemd service configurations if using the Environment variable in a drop-in customisation. However, if using the systemd template unit-files it should be pinned to a specific version tag. The Makefile should only be used for development/testing and usage in scmi is internal only as the --setopt parameter is used to build up the optional container parameters.
  • Removes X-Fleet section from template unit-file.
  • Adds support for Base64 encoded SSH_AUTHORIZED_KEYS values. This resolves issues with setting multiple keys for the systemd installations.

2.1.2 - 2016-09-16

  • Fixed issue with sshd process not running on container startup.

2.1.1 - 2016-09-15

  • Fixes issue running make dist before creating package path.
  • Removes Default requiretty from sudoers configuration. This allows for sudo commands to be run via without the requirement to use the -t option of the ssh command.
  • Adds correct path to scmi on image for install/uninstall.
  • Improves readability of Dockerfile.
  • Adds consistent method of handling publishing of exposed ports. It's now possible to prevent publishing of the default exposed port when using scmi/make for installation.
  • Adds minor improvement to the systemd register template unit-file.
  • Adds /usr/sbin/sshd-wrapper and moves lock file handling out of supervisord configuration.
  • Adds bootstrap script syntax changes for consistency and readability.
  • Adds correction to scmi usage instructions; using centos-7-2.1.0 release tag would have resulted in error if attempting an atomic install.
  • Changes Makefile environment variable from PACKAGE_PATH to DIST_PATH as the name conflicts with the Dockerfile ARG value used in some downstream builds. This is only used when building the, distributable, image package that gets attached to each release.

2.1.0 - 2016-08-26

  • Added scmi (Services Container Manager Interface) to the image to simplify deployment and management of container instances using simply docker itself, using systemd for single docker hosts or fleet for clustered docker hosts.
  • Added metadata labels to the Dockerfile which defines the docker commands to run for operation (install/uninstall). This combined with scmi enables the use of Atomic Host's atomic install|uninistall commands.
  • The xz archive package has ben added to the image to allow scmi to load an image package from disk instead of requiring registry access to pull release images.
  • Updated Supervisor to 3.3.1.
  • Warn operator if any supplied environment variable values failed validation and have been set to a safe default.
  • Added DOCKER_CONTAINER_PARAMETERS_APPEND which allows the docker operator to append parameters to the default docker create template.
  • Removed handling of Configuration Data Volumes from the helper scripts and from the Systemd unit-file definitions. Volumes can be added using the environment variable DOCKER_CONTAINER_PARAMETERS_APPEND or with the --setopt option with scmi.
  • Removed the build.sh and run.sh helper scripts that were deprecated and have been replaced with the Makefile targets. With make installed the process of building and running a container from the Dockerfile is make build install start or to replicate the previous build helper make build images install start ps.
  • Systemd template unit-files have been renamed to [email protected] and [email protected]. The (optional) register sidekick now contains placeholder {{SERVICE_UNIT_NAME}} that is needs gets replaced with the service unit when installing using scmi.
  • The default value for DOCKER_IMAGE_PACKAGE_PATH in the systemd template unit-file has been changed from /var/services-packages to /var/opt/scmi/packages.

2.0.3 - 2016-06-21

  • Fixed broken pipe error returned from get_password function in the sshd_bootstrap script.
  • Replaced hard-coded volume configuration volume name with Systemd template with the Environment variable VOLUME_CONFIG_NAME.
  • Fixed issue with setting an empty string for the DOCKER_PORT_MAP_TCP_22 value - allowing docker to auto-assign a port number.
  • Split out build specific configuration from the Makefile into a default.mk file and renamed make.conf to environment.mk - Makefile should now be more portable between Docker projects.

2.0.2 - 2016-05-21

  • Updated container packages sudo and openssh.

  • Updated container's supervisord to 3.2.3.

  • Added SSH_AUTOSTART_SSHD && SSH_AUTOSTART_SSHD_BOOTSTRAP to allow the operator or downstream developer to prevent the sshd service and/or sshd-bootstrap from startup.

  • Added Makefile to replace build.sh and run.sh helper scripts. See #162 for notes on usage instructions.

  • Set Dockerfile environment variable values in a single build step which helps reduce build time.

  • Fixed issue with setting SSH USER UID:GID values in systemd installation.

  • Fixed issue with setting of SSH_SUDO in Systemd installation.

  • Replaced custom awk type filters with docker native commands where possible.

  • Fixed issue preventing sshd restarts being possible due to bootstrap lock file dependancy.

  • Use exec to run the sshd daemon within the container.

  • Use exec to run the docker daemon process from the systemd unit file template.

  • Reduced startup time by ~1 second by not requiring supervisord to wait for the sshd service to stay up for the default 1 second.

  • Revised systemd installation process, installer script and service template. [email protected] has been replaced by [email protected] and local instances are created of the form [email protected], [email protected], [email protected] etc. which correspond to docker containers named ssh.pool-1.1.1, ssh.pool-1.2.1, ssh.pool-1.3.1 etc. To start 3 systemd managed containers you can simply run:

    $ for i in {1..3}; do sudo env SERVICE_UNIT_LOCAL_ID=$i ./systemd-install.sh; done

  • The systemd service registration feature is now enabled via an optional service unit template file [email protected].

2.0.1 - 2016-03-20

  • Fixed '/dev/stdin: Stale file handle' issue seen when using Ubuntu 14.04.4 LTS or Kitematic 0.10.0 as the docker host.
  • Fixed default value for SSH_USER_FORCE_SFTP.
  • Removed the delay for output to docker logs.
  • Improved bootstrap startup time and included bootstrap time in the SSHD Details log.
  • Added a more robust method of triggering the SSHD process; the sshd-boostrap needs to complete with a non-zero exit code to trigger the SSHD process instead of simply waiting for 2 seconds and starting regardless.
  • Systemd definition to use specific tag.

2.0.0 - 2016-02-28

  • Initial release