change inclusion of os specific defaults (#353)

* change inclusion of os specific defaults

we now include the os specific options into a separate variable and
merge this with the default ansible namespace, when the corresponding
keys do not already exist (eg. are defined by default oder by user)

Signed-off-by: Martin Schurz <[email protected]>

* simplify check for os specific variables

Signed-off-by: Martin Schurz <[email protected]>

* add test for variable override

Signed-off-by: Martin Schurz <[email protected]>

* move tests to verify stage

Signed-off-by: Martin Schurz <[email protected]>

* correct grep

Signed-off-by: Martin Schurz <[email protected]>

* linting

Signed-off-by: Martin Schurz <[email protected]>

* fix typo

Signed-off-by: Martin Schurz <[email protected]>

* Revert "Merge pull request #351 from sprat/fix-umask"

This reverts commit 9e8e0bc8fb, reversing
changes made to 98c7553016.

Signed-off-by: Martin Schurz <[email protected]>

* move immutable ssh vars to internal vars

Signed-off-by: Martin Schurz <[email protected]>

* move vars to OS files

Signed-off-by: Martin Schurz <[email protected]>

* change default handling for all roles

Signed-off-by: Martin Schurz <[email protected]>

* fix issues

Signed-off-by: Martin Schurz <[email protected]>

* add documentation

Signed-off-by: Martin Schurz <[email protected]>

* Update main.yml

Co-authored-by: Sebastian Gumprich <[email protected]>

roles/ssh_hardening/vars/RedHat.yml

@@ -7,3 +7,15 @@ ssh_group: root
 ssh_selinux_packages:
   - policycoreutils-python
   - checkpolicy
+
+# true if SSH support Kerberos
+ssh_kerberos_support: true
+
+# true if SSH has PAM support
+ssh_pam_support: true
+
+sshd_moduli_file: '/etc/ssh/moduli'
+
+# disable CRYPTO_POLICY to take settings from sshd configuration
+# see: https://access.redhat.com/solutions/4410591
+sshd_disable_crypto_policy: true