DNSSEC is off by default on ubuntu/bionic64 (18.04) as per resolved.conf(5).
These tasks are artefacts of obsolete infra configuration, and no longer needed.

Further removing these tasks resolves the issue that the tasks always reports
'changed' and bounces systemd-resolved unneccesarily, even if there was no
actual modification of /etc/systemd/resolved.conf.

This fixes deployment with CentOS 8 Streams and make detection more reliable

Signed-off-by: Etienne Champetier <e.champetier@ateme.com>

By default Ansible stat module compute checksum, list extended attributes and find mime type
To find all stat invocations that really use one of those:
git grep -F stat. | grep -vE 'stat.(islnk|exists|lnk_source|writeable)'

Signed-off-by: Etienne Champetier <e.champetier@ateme.com>

````
TASK [bootstrap-os : Enable RHEL 8 repos] ***************************************************************************************************************************************************************************************************
fatal: [node6]: FAILED! => {"changed": false, "msg": "This system has no repositories available through subscriptions"}
fatal: [node7]: FAILED! => {"changed": false, "msg": "This system has no repositories available through subscriptions"}
fatal: [node1]: FAILED! => {"changed": false, "msg": "This system has no repositories available through subscriptions"}


root@node1:/kubespray# cat /etc/os-release
NAME="Ubuntu"
VERSION="18.04.5 LTS (Bionic Beaver)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 18.04.5 LTS"
VERSION_ID="18.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=bionic
UBUNTU_CODENAME=bionic
root@node1:/kubespray#
```

Ensure when use_oracle_public_repo is set to false the public Oracle Linux yum repos are not set (#7228)

This was introduced in 143e2272
Extra repo is enabled by default in CentOS, and is not the right repo for EL8
Instead of adding a CentOS repo to RHEL, enable the needed RHEL repos with rhsm_repository

For RHEL 7, we need the "extras" repo for container-selinux
For RHEL 8, we need the "appstream" repo for container-selinux, ipvsadm and socat

Signed-off-by: Etienne Champetier <champetier.etienne@gmail.com>

no_proxy is a pain to get right, and having proxy variables present causes issues
(k8s components get proxy configuration after upgrade, see #7100)

It's better to only configure what require proxy:
- the runtime (containerd/docker/crio)
- the package manager + apt_key
- the download tasks

Tested with the following clusters
- 4 CentOS 8 nodes
- 1 Ubuntu 20.04 node

Signed-off-by: Etienne Champetier <champetier.etienne@gmail.com>

* Improve how we set 'proxy=' in yum.conf or dnf.conf

Signed-off-by: Etienne Champetier <champetier.etienne@gmail.com>

* Fixup spaces in no_proxy

Signed-off-by: Etienne Champetier <champetier.etienne@gmail.com>

* Add svc,svc.{{ dns_domain }} to no_proxy

Signed-off-by: Etienne Champetier <champetier.etienne@gmail.com>

Valuating conditional (need_https_proxy.rc != 0) fail if http_proxy set and skip_http_proxy_on_os_packages is true (#7078)

* Remove because of empty need_http_proxy.rc if http/https_proxy and skip_http_proxy_on_os_packages=true is set

* Modify sample for debian and centos skip_http_proxy

* Modify sample for debian and centos skip_http_proxy

This fixes markdownlint failures under roles/

* Fedora CoreOS: Fix for ethtool pre-installed

Fix error in rpm-ostree when ethtool is already insatlled (FCOS >= 32.20201104.3.0)

* Fedora CoreOS: Fix connection lost

Fedora CoreOS: Ignore connection lost due to reboot and continues the playbook

The previous hash was still that of v7.3.1, see https://www.pypy.org/download.html for the hash of the current release.

* Adding option to disable gloablly applying a proxy to etc/yum.conf

* Change made to proxy_yum_globaly basedon reviewer feedback

* fix trailing spaces in ymllint

* remove podman cni plugin

* configure networkamanger global dns

* allow installation of python3-libselinux by disabling update repo temporary

* remove ipv4 section because it is not a valid configuration

The bootstrap-os role uses a bootstrap script to provision a
python interpreter on flatcar and container os hosts. As the
pypy project switched to another hoster, the download url changed.

If applied this will use the new proper pypy download url in bootstrap script

Signed-off-by: Victor Morales <v.morales@samsung.com>

Trying to layer this package on Fedora 32 causes the install to crash
and furthermore it looks like the original bug linked to in the comment
has been resolved for Fedora 31

* Add oraclelinux8 and disable firewalld

Add oraclelinux8 image and disable firewalld on oraclelinux VMs

* Fix Oracle Linux repositories

As documented in: http://yum.oracle.com/getting-started.html#installing-software-from-oracle-linux-yum-server
public-yum-ol7.repo was deprecated on release 7.6. Some repos were integrated into oracle-linux-ol7.repo (i.e.: ol7_latest, ol7_addons) and other are available as packages (epel). This also adds support for oraclelinux8

* Fix to use ansible_distribution_version

Instead of ansible_distribution_major_version

* Update README.md

As of pypy 7.3.0, we can utilize the official pypy project as opposed to
the previously used "portable-pypy" distribution.

The playbook that bootstrap openSUSE servers assumes that the
/etc/sysconfig/proxy file exists but the execution fails when
these file is not present. This change guarantees its existence.

* fix upgrade of crio on fcos
- update documents

* install conntrack required by kube-proxy
- like commit 48c41bcb

* enable fedora modular repo for crio

* allow to override crio configuration
- set cgroup manager same to kubelet_cgroup_driver if defined
- path of seccomp_profile depends on distribution

* allow to override crio configuration
- fix path for ubuntu

* allow to override crio configuration
- fix cni path for fcos

* Fix proxy and module_hotfixes

On CentOS 8 with proxy ansible render inline `proxy` and `module_hotfixes` options.

For example:

`proxy=http://127.0.0.1:3128module_hotfixes=True`

But expected result:

```
proxy=http://127.0.0.1:3128
module_hotfixes=True
```

* Use ini_file module for work with ini files

* Prevent duplicates proxy= option in /etc/yum.conf

Module `lineinfile` is weak, use most powerful module `ini_file` and add or remove `proxy=` when `http_proxy` is defined or not.

* fedora coreos support
- bootstrap and new fact for

* fedora coreos support
- fix bootstrap condition

* fedora coreos support
- allow customize packages for fedora coreos bootstrap

* fedora coreos support
- prevent install ptyhon3 and epel via dnf for fedora coreos

* fedora coreos support
- handle all ostree like os in same way

* fedora coreos support
- handle all ostree like os in same way for crio

* fedora coreos support
- add fcos documentations

Solves problem with mitogen about 'Compress object has no attribute copy' in zlib module.

* Merge OracleLinux in RedHat bootstrap-os

* Set default for use_oracle_public_repo in main.yaml

The 'regexp' parameter matches last occurrence of a line starting with 'proxy=' and replaces it with the one defined in 'line' parameter. If no match - it works same way as before. This fixes resuming cluster deployments failed after that task (if there was no more than one line starting with 'proxy' in the yum.conf file - this condition should also be reassured with the change introduced here) eg. if they were initiated with Terraform.