On centos/fedora/rhel/derivatives, /etc/ssh/sshd_config has mode 0600,
but cloud-init unilaterally sets file modes to 0644 when no explicit
mode is passed to util.write_file. On ubuntu/debian, this file has
mode 0644. With this patch, write_file learns about the copy_mode
option, which will cause it to use the mode of the existing file by
default, falling back to the explicit mode parameter if the file does
not exist.
Fix bug that resulted in an attempt to rename bonds or vlans.
When cloud-init ran in the init stage (after networking had come up).
A bug could occur where cloud-init would attempt and fail to rename
network devices that had "inherited" mac addresses.
The intent of apply_network_config_names was always to rename only
the devices that were "physical" per the network config. (This would
include veth devices in a container). The bug was in creating
the dictionary of interfaces by mac address. If there were multiple
interfaces with the same mac address then renames could fail.
This situation was guaranteed to occur with bonds or vlans or other
devices that inherit their mac.
The solution is to change get_interfaces_by_mac to skip interfaces
that have an inherited mac.
Also drop the 'devs' argument to get_interfaces_by_mac. It was
non-obvious what the result should be if a device in the input
list was filtered out. ie should the following have an entry for
bond0 or not. get_interfaces_by_mac(devs=['bond0'])
tests: update OpenNebula and Digital Ocean to not rely on host interfaces.
Mock the use use of get_interfaces_by_mac in Digital Ocean and OpenNebula.
Its best to mock this for the tests as the results aren't expecting
it to fail.
Note, as it stands, OpenNebula relies on devices named 'eth0'.
The metadata (context) does not provide mac addresses.
net: in netplan renderer delete known image-builtin content.
When rendering network configuration to netplan, remove known
"builtin" configurations. The specific example here is Ubuntu Core
that has netplan configuration in etc/netplan/00-snapd-config.yaml.
We also delete the derived files since netplan will have created
these derived files in its generator that runs well before cloud-init.
The reading of MAAS datasource configuration was simply broken.
it was looking in /etc/cloud/*maas*.cfg rather than
/etc/cloud/cloud.cfg.d/*maas*.cfg.
along side here there is also:
* doc improvement on check_config
* remove the path restrictions when searching for values in both
maas and ovf_vmware_guest_customization. that was done to improve
performance as check_config's parsing is slow.
* change to maas to search all config files rather than restricting
to a subset as it tried before. that was done for
* better variable names.
- rename path_cloud_confd to path_etc_cloud
- PATH_ETC_CLOUD: /etc/cloud
- PATH_ETC_CI_CFG: /etc/cloud/cloud.cfg
- PATH_ETC_CI_CFG_D: /etc/cloud/cloud.cfg.d
support resizing partition and rootfs on system booted without initramfs.
When booted without an initramfs, the root device will be /dev/root, not a
named device. There is partial support for this when resizing filesystems,
but not for growing partitions, without which it doesn't do much good. Move
the /dev/root resolution code to util.py and use it from cc_growpart.py.
Also, booting without an initramfs only works with a root= argument that's
either a kernel device name (which is unstable) or a partition UUID. Handle
the case of root=PARTUUID=value, not just LABEL and UUID.
