Build once, test everywhere

.gitignore

@@ -86,6 +86,8 @@ playbooks/roles/linux-mirror/linux-mirror-systemd/mirrors.yaml
 #   yet.
 workflows/selftests/results/
 
+workflows/linux/artifacts/
+
 workflows/linux/refs/default/Kconfig.linus
 workflows/linux/refs/default/Kconfig.next
 workflows/linux/refs/default/Kconfig.stable

playbooks/build_linux.yml

@@ -0,0 +1,4 @@
+---
+- hosts: all
+  roles:
+    - role: build_linux

playbooks/install_linux.yml

@@ -0,0 +1,4 @@
+---
+- hosts: all
+  roles:
+    - role: install_linux

playbooks/roles/build_linux/README.md

@@ -0,0 +1,74 @@
+build_linux
+===========
+
+The build_linux role downloads and builds the Linux kernel.  It also
+lets you apply custom patches, remove kernels, etc.; anything you
+have to do with regards to generic kernel development.
+
+By default, it tracks one of the latest stable kernels that are
+still supported using the linux stable git tree.
+
+Requirements
+------------
+
+A separate block device is required on which to create the file
+system where the test kernel is built.
+
+Role Variables
+--------------
+
+  * infer_uid_and_group: defaults to False, if set to True, then we will ignore
+    the passed on data_user and data_group and instead try to infer this by
+    inspecting the `whoami` and getent on the logged in target system we are
+    provisioning. So if user sam is running able on a host, targetting a system
+    called foofighter and logging into that system using username pincho,
+    then the data_user will be set overwritten and set to pincho. We will then
+    also lookup for pincho's default group id and use that for data_group.
+    This is useful if you are targetting a slew of systems and don't really
+    want to deal with the complexities of the username and group, and the
+    default target username you use to ssh into a system suffices to use as
+    a base. This is set to False to remain compatible with old users of
+    this role.
+  * data_path: where to place the git trees we clone under
+  * data_user: the user to assign permissions to
+  * data_group: the group to assign permissions to
+
+  * data_device: the target device to use for the data partition
+  * data_fstype: the filesystem to store the data parition under
+  * data_label: the label to use
+  * data_fs_opts: the filesystem options to use, you want to ensure to add the
+    label
+
+  * target_linux_admin_name: your developer name
+  * target_linux_admin_email: your email
+  * target_linux_git: the git tree to clone, by default this is the linux-stable
+    tree
+  * target_linux_tree: the name of the tree
+  * target_linux_dir_path: where to place the tree on the target system
+
+  * target_linux_ref : the actual tag as used on linux, so v4.19.62
+  * target_linux_extra_patch: if defined an extra patch to apply with git
+     am prior to compilation
+  * target_linux_config: the configuration file to use
+
+Dependencies
+------------
+
+None.
+
+Example Playbook
+----------------
+
+Below is an example playbook, say a build_linux.yml file:
+
+```
+---
+- hosts: all
+  roles:
+    - role: build_linux
+```
+
+License
+-------
+
+copyleft-next-0.3.1

playbooks/roles/build_linux/defaults/main.yml

@@ -0,0 +1,38 @@
+# SPDX-License-Identifier copyleft-next-0.3.1
+---
+kdevops_bootlinux: false
+infer_uid_and_group: false
+
+data_path: "/data"
+data_user: "kdevops"
+data_group: "kdevops"
+data_device: "/dev/disk/by-id/nvme-QEMU_NVMe_Ctrl_kdevops0"
+data_fstype: "xfs"
+data_label: "data"
+data_fs_opts: "-L {{ disk_setup_label }}"
+
+target_linux_admin_name: "Hacker Amanda"
+target_linux_admin_email: "devnull@kernel.org"
+target_linux_git: "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
+target_linux_shallow_depth: 0
+target_linux_tree: "linux-stable"
+target_linux_dir_path: "{{ data_path }}/{{ target_linux_tree }}"
+kdevops_baseline_and_dev: false
+
+target_linux_ref: "v4.19.133"
+target_linux_delta_file:
+target_linux_config: "config-{{ target_linux_ref }}"
+make: "make"
+target_linux_make_cmd: "{{ make }} -j{{ ansible_processor_nproc }}"
+target_linux_make_install_cmd: "{{ target_linux_make_cmd }} modules_install install"
+
+build_artifacts_dir: "{{ topdir_path }}/workflows/linux/artifacts/"
+
+uninstall_kernel_enable: false
+
+bootlinux_b4_am_this_host: false
+
+kdevops_workflow_enable_cxl: false
+bootlinux_cxl_test: false
+
+bootlinux_tree_set_by_cli: false

playbooks/roles/build_linux/tasks/install-deps/debian/main.yml

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+---
+# Install dependencies for building linux on Debian
+
+- name: Update apt cache
+  become: true
+  become_method: ansible.builtin.sudo
+  ansible.builtin.apt:
+    update_cache: true
+  tags:
+    - linux
+
+# apt-get build-dep does not capture all requirements
+- name: Install Linux kernel build dependencies
+  become: true
+  become_method: ansible.builtin.sudo
+  ansible.builtin.apt:
+    name:
+      - bison
+      - flex
+      - git
+      - gcc
+      - make
+      - gawk
+      - bc
+      - dump
+      - indent
+      - sed
+      - libssl-dev
+      - libelf-dev
+      - liburcu-dev
+      - xfsprogs
+      - e2fsprogs
+      - btrfs-progs
+      - ntfs-3g
+      - mdadm
+      - rpcbind
+      - portmap
+      - hwinfo
+      - open-iscsi
+      - python3-pip
+      - zstd
+      - libncurses-dev
+      - b4
+    state: present
+  tags:
+    - linux

playbooks/roles/build_linux/tasks/install-deps/redhat/main.yml

@@ -0,0 +1,102 @@
+---
+- name: Enable installation of packages from EPEL
+  ansible.builtin.include_role:
+    name: epel-release
+  when:
+    - ansible_distribution != "Fedora"
+
+- name: Install packages for building the Linux kernel
+  become: true
+  become_method: ansible.builtin.sudo
+  ansible.builtin.dnf:
+    name: "{{ packages }}"
+    state: present
+    update_cache: true
+  retries: 3
+  delay: 5
+  register: result
+  until: result is succeeded
+  vars:
+    packages:
+      - bison
+      - flex
+      - git-core
+      - e2fsprogs
+      - xfsprogs
+      - xfsdump
+      - lvm2
+      - gcc
+      - make
+      - gawk
+      - bc
+      - dump
+      - libtool
+      - psmisc
+      - sed
+      - vim
+      - fio
+      - libaio-devel
+      - diffutils
+      - net-tools
+      - ncurses-devel
+      - xfsprogs
+      - e2fsprogs
+      - elfutils-libelf-devel
+      - ntfs-3g
+      - mdadm
+      - rpcbind
+      - portmap
+      - hwinfo
+      - iscsi-initiator-utils
+      - openssl
+      - openssl-devel
+      - dwarves
+      - userspace-rcu
+      - zstd
+
+- name: Install btrfs-progs
+  become: true
+  become_method: ansible.builtin.sudo
+  ansible.builtin.dnf:
+    name:
+      - btrfs-progs
+    state: present
+    update_cache: true
+  retries: 3
+  delay: 5
+  register: btrfs_result
+  until: btrfs_result is succeeded
+  when:
+    - ansible_distribution == "Fedora"
+
+- name: Install rpmbuild
+  become: true
+  become_method: ansible.builtin.sudo
+  ansible.builtin.dnf:
+    name:
+      - rpmbuild
+    state: present
+    update_cache: true
+  retries: 3
+  delay: 5
+  register: rpmbuild_result
+  until: rpmbuild_result is succeeded
+  when:
+    - ansible_distribution != "Fedora"
+
+- name: Install rpmbuild
+  become: true
+  become_method: ansible.builtin.sudo
+  ansible.builtin.dnf:
+    name:
+      - perl-core
+      - rpm-build
+      - rsync
+    state: present
+    update_cache: true
+  retries: 3
+  delay: 5
+  register: rpmbuild_result
+  until: rpmbuild_result is succeeded
+  when:
+    - ansible_distribution == "Fedora"

playbooks/roles/build_linux/tasks/install-deps/suse/main.yml

@@ -0,0 +1,31 @@
+---
+- name: Install Linux kernel build dependencies for SUSE
+  become: true
+  become_method: ansible.builtin.sudo
+  community.general.zypper:
+    name:
+      - bison
+      - flex
+      - git-core
+      - gcc
+      - make
+      - gawk
+      - bc
+      - dump
+      - sed
+      - libopenssl-devel
+      - libelf-devel
+      - liburcu8
+      - diffutils
+      - net-tools
+      - ncurses-devel
+      - xfsprogs
+      - e2fsprogs
+      - btrfsprogs
+      - ntfs-3g
+      - mdadm
+      - rpcbind
+      - portmap
+      - hwinfo
+      - open-iscsi
+    disable_recommends: false