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2019-08-09Add support for publishing host keys to GCE guest attributesRick Wright
This adds an empty publish_host_keys() method to the default datasource that is called by cc_ssh.py. This feature can be controlled by the 'ssh_publish_hostkeys' config option. It is enabled by default but can be disabled by setting 'enabled' to false. Also, a blacklist of key types is supported. In addition, this change implements ssh_publish_hostkeys() for the GCE datasource, attempting to write the hostkeys to the instance's guest attributes. Using these hostkeys for ssh connections is currently supported by the alpha version of Google's 'gcloud' command-line tool. (On Google Compute Engine, this feature will be enabled by setting the 'enable-guest-attributes' metadata key to 'true' for the project/instance that you would like to use this feature for. When connecting to the instance for the first time using 'gcloud compute ssh' the hostkeys will be read from the guest attributes for the instance and written to the user's local known_hosts file for Google Compute Engine instances.)
2019-08-07cc_set_passwords: rewrite documentationDaniel Watkins
What we had previously was inaccurate in a few respects. LP: #1838794
2019-07-10Fix a couple of issues raised by a coverity scanDaniel Watkins
* cc_lxd: fix copy/paste error in debug logging * DataSourceCloudSigma: remove unreachable code * This unreachable code was introduced in a refactor (in 2015) which removed the need for an exception handler, but retained the logging from the exception handler as an unreachable fall-through.
2019-05-31Fix spelling error making 'an Ubuntu' consistent.Brian Murray
2019-05-28freebsd: ability to grow root file systemGonéri Le Bouder
- UFS file system support - GPT partition table support - add support for newfs's -L parameter (label) - move freebsd specific test from Azure to freebsd
2019-05-08cc_mounts: check if mount -a on no-change fstab pathJason Zions (MSFT)
Under some circumstances, cc_disk_setup may reformat volumes which already appear in /etc/fstab (e.g. Azure ephemeral drive is reformatted from NTFS to ext4 after service-heal). Normally, cc_mounts only calls mount -a if it altered /etc/fstab. With this change cc_mounts will read /proc/mounts and verify if configured mounts are already mounted and if not raise flag to request a mount -a. This handles the case where no changes to fstab occur but a mount -a is required due to change in underlying device which prevented the .mount unit from running until after disk was reformatted. LP: #1825596
2019-04-17cc_apt_configure: fix typo in apt documentationDominic Schlegel
2019-04-04ubuntu_advantage: rewrite cloud-config moduleChad Smith
ubuntu-advantage-tools version 19 has a different command line interface. Update cloud-init's config module to accept new ubuntu_advantage configuration settings. * Underscores better than hyphens: deprecate 'ubuntu-advantage'   cloud-config key in favor of 'ubuntu_advantage' * Attach machines with either sso credentials of UA user_token * Services are enabled by name though an 'enable' list * Raise warnings if deprecated ubuntu-advantage config keys are   present, or errors if its config we cannott adapt to Ubuntu Advantage support can now be configured via #cloud-config with the following yaml: ubuntu_advantage:   token: 'thisismyubuntuadvantagetoken'   enable: [esm, fips, livepatch] Co-Authored-By: Daniel Watkins <daniel.watkins@canonical.com>
2019-03-19Add ubuntu_drivers config moduleDaniel Watkins
The ubuntu_drivers config module enables usage of the 'ubuntu-drivers' command. At this point it only serves as a way of installing NVIDIA drivers for general purpose graphics processing unit (GPGPU) functionality. Also, a small usability improvement to get_cfg_by_path to allow it to take a string for the key path "toplevel/second/mykey" in addition to the original: ("toplevel", "second", "mykey")
2019-02-27cc_apt_pipelining: stop disabling pipelining by defaultDaniel Watkins
This was introduced due to Ubuntu using S3 mirrors, and S3 having a buggy pipelining implementation. Those Ubuntu mirrors are no longer in production and, furthremore, apt has also grown the ability to handle servers with broken pipelining. As such, we can stop disabling pipelining, which should result in improved apt download speeds. LP: #1794982
2019-02-26cc_rsyslog: Escape possible nested setDaniel Watkins
Under Python 3.7, we are seeing `FutureWarning: Possible nested set at position 23`; escaping this bracket causes that warning to disappear. LP: #1816967
2019-02-25Enable encrypted_data_bag_secret support for ChefEric Williams
Encrypted data bags require a secrets file to be present to decrypt, and the location of the file must be configured the Chef client configuration file, client.rb. This update enables cloud-init's chef module to update that setting in client.rb. LP: #1817082
2019-01-30Resolve flake8 comparison and pycodestyle over-ident issuesParide Legovini
Fixes: - flake8: use ==/!= to compare str, bytes, and int literals - pycodestyle: E117 over-indented
2019-01-28flake8: use ==/!= to compare str, bytes, and int literalsParide Legovini
2019-01-25lxd: install zfs-linux instead of zfs meta packageJohnson Shi
When using the LXD module cloud-init will attempt to install ZFS if it does not exist on the target system. However instead of installing the `zfsutils-linux` package it attempts to install `zfs` resulting in an error. Ubuntu Xenial (16.04) has zfs meta package, but Bionic (18.04) does not. Use the specific base package instead of zfs meta. Co-authored-by: Michael Skalka <michael.skalka@canonical.com> LP: #1799779
2019-01-15cc_set_passwords: Fix regex when parsing hashed passwordsMarlin Cremers
Correct invalid regex to match hashes starting with the following: - $1, $2a, $2y, $5 or $6 LP: #1811446
2018-12-06write_files: add support for appending to files.James Baxter
Add 'append: true' to write_files entries to append 'content' to file specified by 'path' key. This modifies the file open mode to append.
2018-11-14resizefs: Prefix discovered devpath with '/dev/' when path does not existIgor Galić
In some environments, like FreeBSD, gpart can return the device basename instead of the full path. If this discovered devpath does not exist and is missing the '/dev/' prefix, add that prefix in an attempt to find the device.
2018-10-11Correct spelling in an error message (udevadm).Katie McLaughlin
Fix a typo in a RuntimeError path. (udevamd -> udevadm).
2018-09-26lxd: adjust to snap installed lxd.Scott Moser
Relax expectation on path to lxc and lxd. The deb path still does install them in /usr/bin/ but that is overly pedantic. Add a 'lxd waitready' (present since lxd 0.5) to wait until lxd is ready before operating on it.
2018-09-08config: disable ssh access to a configured user accountChad Smith
Cloud config can now disable ssh access to non-root users. When defining the 'users' list in cloud-configuration a boolean 'ssh_redirect_user: true' can be provided to disable ssh logins for that user. Any ssh 'public-keys' defined in cloud meta-data will be added and disabled in .ssh/authorized_keys. Any attempts to ssh as this user using acceptable ssh keys will be presented with a message like the following: Please login as the user "ubuntu" rather than the user "youruser".
2018-09-05tests: Disallow use of util.subp except for where needed.Scott Moser
In many cases, cloud-init uses 'util.subp' to run a subprocess. This is not really desirable in our unit tests as it makes the tests dependent upon existance of those utilities. The change here is to modify the base test case class (CiTestCase) to raise exception any time subp is called. Then, fix all callers. For cases where subp is necessary or actually desired, we can use it via   a.) context hander CiTestCase.allow_subp(value)   b.) class level self.allowed_subp = value Both cases the value is a list of acceptable executable names that will be called (essentially argv[0]). Some cleanups in AltCloud were done as the code was being updated.
2018-09-01Add unit tests for config/cc_ssh.pyFrancis Ginther
These tests focus on the apply_credentials method and the ssh setup for root and a distro default user.
2018-07-21pylint: Fix pylint warnings reported in pylint 2.0.0.Scott Moser
Pylint 2.0.0 was recently released and complains more about logging-not-lazy than it used to. I've fixed those warnings, here. The changes in rh_subscription are more extensive. pylint may be complaining incorrectly there, but the tests were not correctly un-doing all of their mock/patching. This cleans those up and makes pylint happy.
2018-07-09docs: note in rtd about avoiding /tmp when writing filesChad Smith
LP: #1727876
2018-06-28docs: Fix a small spelling error.Oz N Tiram
standargs -> standards.
2018-06-19docs: represent sudo:false in docs for user_groups config moduleChad Smith
2018-06-15lxd: Delete default network and detach device if lxd-init created them.Scott Moser
Newer versions (3.0.1+) of lxd create the 'lxdbr0' network when 'lxd init --auto' is invoked. When cloud-init is given a network configuration to pass on to lxc and that config had no name specified or 'lxdbr0', then cloud-init would fail to create the network as it already exists. Similarly, we need to remove the device from the default profile so that the attach code can work. Also, add a _lxc method and use it to make sure we're getting the --force-local flag everywhere. LP: #1776958
2018-05-29pyflakes: fix unused variable references identified by pyflakes 2.0.0.Scott Moser
A newer version of pyflakes (2.0.0) was released. It identifed some unused variables that version 1.6.0 did not identify. The change here merely fixes those unused variables.
2018-05-23yaml_load/schema: Add invalid line and column nums to error messageChad Smith
Yaml tracebacks are generally hard to read for average users. Add a bit of logic to util.yaml_load and schema validation to look for YAMLError.context_marker or problem_marker line and column counts. No longer log the full exceeption traceback from the yaml_load error, instead just LOG.warning for the specific error and point to the offending line and column where the problem exists.
2018-05-22cc_mounts: Do not add devices to fstab that are already present.Lars Kellogg-Stedman
Do not add new entries to /etc/fstab for devices that already have an existing fstab entry. Resolves: rhbz#1542578
2018-05-17read_file_or_url: move to url_helper, fix bug in its FileResponse.Scott Moser
The result of a read_file_or_url on a file and on a url would differ in behavior. str(UrlResponse) would return UrlResponse.contents.decode('utf-8') while str(FileResponse) would return str(FileResponse.contents) The difference being "b'foo'" versus "foo". As part of the general goal of cleaning util, move read_file_or_url into url_helper.
2018-05-16flake8: fix flake8 errors in previous commit.Scott Moser
2018-05-16typos: Fix spelling mistakes in cc_mounts.py log messagesStephen Ford
This also makes some of the messages more consistent.
2018-05-01FreeBSD: Invoke growfs on ufs filesystems such that it does not prompt.Harm Weites
By default, FreeBSD's growfs runs interactively asking a question which can be mitigated using the '-y' command line option. The fix here is simply to pass -y to growfs to avoid the prompt. LP: #1404745
2018-04-26net: detect unstable network names and trigger a settle if neededRyan Harper
The cloud-init-local.service expects that any network device name changes have already been completed by the kernel or udev daemon. In some situations we've found that the renaming of interfaces from kernel names (eth0, eth1, etc) to their persistent names (eno1, ens3, enp0s1, etc) may happen after cloud-init-local has started where it reads values from sysfs about what network devices are present, and which device to use as a fallback nic. Subsequently, cloud-init-local would write out network configuration for a kernel device name which would no longer be present by the time that networking services start to bring up the devices. The result is that the instance does not get networking configured. Prior to use of systemd-networkd, the Ubuntu 'networking.service' unit included a call to udevadm settle which is why this race is not seen on a Xenial system. This change adds the ability to detect if an interface has a stable name, if if we find one without stable names and stable names have not been disabled (net.ifnames=0 in /proc/cmdline), then cloud-init will invoke udevadm settle. LP: #1766287
2018-04-20schema: in validation, raise ImportError if strict but no jsonschema.Scott Moser
validate_cloudconfig_schema with strict=True would not actually validate if there was no jsonschema available. That seems kind of strange. The change here is to make it raise an exception if strict was passed in. And then to fix the one test that needed a skipIfJsonSchema wrapper.
2018-04-20set_passwords: Add newline to end of sshd config, only restart if updated.Scott Moser
This admittedly does a fairly extensive re-factor to simply add a newline to the end of sshd_config. It makes the ssh_config updating portion of set_passwords more testable and adds tests for that. The new function is in 'update_ssh_config_lines' which allows you to update a config with multiple changes even though only a single one is currently used. We also only restart the ssh daemon now if a change was made to the config file. Before it was always restarted if the user specified a value for ssh_pwauth other than 'unchanged'. Thanks to Lorens Kockum for initial diagnosis and patch. LP: #1677205
2018-04-19pylint: pay attention to unused variable warnings.Scott Moser
This enables warnings produced by pylint for unused variables (W0612), and fixes the existing errors.
2018-04-18Schema: do not warn on duplicate items in commands.Scott Moser
runcmd, bootcmd, snap/commands, ubuntu-advantage/commands would log warning (and fail if strict) on duplicate values in the commands. But those should be allowed. Example, it is perfectly valid to do: runcmd: ['sleep 1', 'sleep 1'] LP: #1764264
2018-04-18net: Depend on iproute2's ip instead of net-tools ifconfig or routeChad Smith
The net-tools package is deprecated and will eventually be dropped. Use "ip route", "link" or "address" instead of "ifconfig" or "route" calls. Cloud-init can now run in an environment that no longer has net-tools. This affects the network and route printing emitted to cloud-config-output.log as well as the cc_disable_ec2_metadata module. Additional changes:  - separate readResource and resourceLocation into standalone test    functions  - Fix ipv4 address rows to report scopes represented by ip addr show  - Formatted route/address ouput now handles multiple ipv4 and ipv6    addresses on a single interface Co-authored-by: James Hogarth <james.hogarth@gmail.com> Co-authored-by: Robert Schweikert <rjschwei@suse.com>
2018-04-18pycodestyle: Fix invalid escape sequences in string literals.Scott Moser
Python has deprecated these invalid string literals now https://bugs.python.org/issue27364 and pycodestyle is identifying them with a W605 warning. https://github.com/PyCQA/pycodestyle/pull/676 So basically, any use of \ not followed by one of [\'"abfnrtv] or \ooo (octal) \xhh (hex) or a newline is invalid. This is most comomnly seen for us in regex. To solve, you either: a.) use a raw string r'...' b.) correctly escape the \ that was not intended to be interpreted.
2018-04-12Implement ntp client spec with auto support for distro selectionRyan Harper
Add a base NTP client configuration dictionary and allow Distro specific changes to be merged. Add a select client function which implements logic to preferr installed clients over clients which need to be installed. Also allow distributions to override the cloud-init defaults. LP: #1749722
2018-04-03correct documentation to match correct attribute name usage.Dominic Schlegel
LP: #1420018
2018-04-02cc_resizefs, util: handle no /dev/zfsRyan Harper
The zfs/zpool commands will hang for 10 seconds if /dev/zfs is not present (bug 1760173). This is a common occurence for containers using zfs as rootfs. Additionally handle missing zpool command or other errors that may occur while executing the zpool command.
2018-03-27FreeBSD: resizefs module now able to handle zfs/zpool.Dominic Schlegel
Previously there was no support at all for zfs file system. With this change it is now possible to use the resizefs module to grow a zpool to its maximum partition size on FreeBSD. LP: #1721243
2018-03-26cc_puppet: Revert regression of puppet creating ssl and ssl_cert dirsChad Smith
Replace regressed cc_puppet functionality from a1f678f8. The following content was inadvertently dropped: - chown /var/lib/puppet/ssl as puppet:root. - Automatic creation of /var/lib/puppet/ssl/certs
2018-03-23tests: Fix newly added schema unit tests to skip if no jsonschema.Scott Moser
The recently added snap and ubuntu_advantage modules had unit tests that exercised jsonschema. Those throw error if jsonschema is not present. Fix to skip in that scenario.
2018-03-22ubuntu-advantage: Add new config module to support ubuntu-advantage-toolsChad Smith
ubuntu-advantage-tools is a package for enabling and disabling extended support services such as Extended Security Maintenance (ESM), Canonical Livepatch and FIPS certified PPAs. Simplify Ubuntu Advantage setup on machines by allowing users to provide a list of ubuntu-advantage commands in cloud-config.
2018-03-16tests: fix flakes warning for unused variableChad Smith