This is useful during provisioning, when the keys were not generated
by sshd-keygen service or similar principles depending on operating
system.
This is also helpful when running this role in containers, where
is no service running either.
The keys are generally readable only by root, but in RHEL and Fedora,
they are readable also by group ssh_keys, which is used for hostbased
authentication.
This should fix#111
The usage of set_facts inside of roles is not recommended if
it is used for internal variables used only inside of the role.
It is recommended to use variables with smaller scope to avoid
inter-dependencies between different invocations of the same
role as demonstrated in the tests_alternative_file.yml later
in the patch series
ttps://github.com/oasis-roles/meta_standards#ansible-best-practices
This option has been deprecated in OpenSSH for nearly two years, was the default for five years before that, and is not part of the current Fedora default configuration. It should not be included in sshd_config on Fedora systems.
Currently only supported Fedora distributions are 22 and 23, and they both ship openssh 7.1p1 which supports all 'rsa', 'ecdsa' and 'ed25519' keys, turn them on by default.
Based on RedHat 7 with few modifications (ed25519 hostkey for F22,
GSSAPICleanupCredentials defaults to no, s/LC_TYPE/LC_CTYPE/ in
AcceptEnv).
Tested on Fedora 20 & 22.
