290 migrate nix playbooks from ol7 to ubuntu

playbooks/install_nix_ubuntu.yml

@@ -0,0 +1,124 @@
+---
+
+- name: Check whether Nix is already installed
+  hosts: login
+  become: true
+  tasks:
+    - name: Call the nix command to see if it is defined
+      shell: |
+        . /nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh
+        nix --version
+      ignore_errors: true
+      changed_when: false
+      register: nix_version_output
+    - name: Stop if Nix is installded
+      fail:
+      when: nix_version_output.rc == 0
+
+# install nix
+- name: Install Nix
+  hosts: login
+  become: true
+  tasks:
+    - include_role:
+        name: nix
+
+- name: Create NFS share on login node
+  hosts: login
+  become: true
+  vars:
+    export_path: "/nix"
+    export_name: "nix"
+    local_path:  "/nix"
+  tasks:
+    - include_role:
+        name: nfs-server
+
+- name: Mount NFS share on all other nodes
+  hosts: controller, slurm_backup, compute
+  become: true
+  tasks:
+    - include_role:
+        name: nfs-client
+      vars:
+        local_path: "/nix"
+        export_host: "{{ hostvars[groups['login'][0]]['ansible_default_ipv4']['address'] }}"
+        options: ""
+        export_path: "/nix"
+
+- name: Move nix.conf file
+  hosts: login
+  become: true
+  tasks:
+    - name: Move nix.conf file
+      command: mv /etc/nix/nix.conf /nix/nix.conf
+
+- name: Add bash function for nix command
+  hosts: login
+  become: true
+  tasks: 
+    - name: Add bash function
+      blockinfile:
+        path: /etc/bash.bashrc
+        block: |
+          nix-install() {
+              command="nix-env -iA nixpkgs.$1"
+              shift
+              for arg in "$@"; do
+                  command+=" nixpkgs.$arg"
+              done
+              echo "$command"
+              eval "$command"
+          }
+
+          nix-remove() {
+              command="nix-env -e $1"
+              shift
+              for arg in "$@"; do
+                  command+=" $arg"
+              done
+              echo "$command"
+              eval "$command"
+          }
+
+          nix-upgrade() {
+              command="nix-env -u $1"
+              shift
+              for arg in "$@"; do
+                  command+=" $arg"
+              done
+              echo "$command"
+              eval "$command"
+          }
+
+          nix-list() {
+              command="nix-env -q"
+              eval "$command"
+          }
+
+          nix-search() {
+              command="nix-env -qaP $1"
+              eval "$command"
+          }
+        marker: "# {mark} NIX ANSIBLE MANAGED BLOCK"
+        state: present
+
+- name: Set Nix environment variables
+  hosts: login
+  become: true
+  tasks:
+    - name: Set NIX_CONF_DIR environment variable
+      lineinfile:
+        path: /etc/bash.bashrc
+        line: export NIX_CONF_DIR=/nix
+        create: yes
+
+- name: Add Nix binaries to path
+  hosts: controller, slurm_backup, compute
+  become: true
+  tasks:
+    - name: Add Nix binaries to /etc/bash.bashrc file
+      lineinfile:
+        path: /etc/bash.bashrc
+        line: export PATH=~/.nix-profile/bin:$PATH
+        create: yes

playbooks/roles/cais-compute/tasks/ubuntu.yml

@@ -12,8 +12,7 @@
 - name: Install glog
   vars: 
     package_name: 
-      - libglog0v5
-      - libglog-dev
+      - libgoogle-glog-dev
     package_state: latest
   include_role: 
     name: safe_yum
@@ -25,20 +24,15 @@
       - golang
       - golang-go
       - golang-doc
-      - vim-gocomplete
     package_state: latest
   include_role: 
     name: safe_yum
   ignore_errors: true
 
-- name: Install gcc
+- name: Install dev tools
   vars: 
     package_name: 
-      - gcc
-      - g++
-      - gdb
-      - gfortran
-      - gcc-plugin-dev
+      - build-essential
     package_state: latest
   include_role: 
     name: safe_yum

playbooks/uninstall_nix_ubuntu.yml

@@ -0,0 +1,165 @@
+--- 
+
+- name: Remove nix daemon service
+  hosts: all
+  become: true
+  tasks:
+    - name: Gather service facts
+      service_facts:
+    - name: Stop nix daemon socket
+      systemd: 
+        name: nix-daemon.socket
+        enabled: false
+        state: stopped
+        daemon_reload: true
+    - name: Stop nix daemon service
+      systemd: 
+        name: nix-daemon.service
+        enabled: false
+        state: stopped
+        daemon_reload: true
+      when: "'nix-daemon.service' in services"
+    - name: Remove nix daemon socket unit file
+      file: 
+        path: /etc/systemd/system/nix-daemon.socket
+        state: absent
+    - name: Remove nix daemon service unit file
+      file:
+        path: /etc/systemd/system/nix-daemon.service
+        state: absent
+  ignore_errors: true
+
+- name: Remove configuration files
+  hosts: all
+  become: true
+  tasks:
+    - file:
+        path: /etc/tmpfiles.d/nix-daemon.conf
+        state: absent
+
+- name: Unmount the /nix directory
+  hosts: all
+  become: true
+  tasks:
+    - name: Unmount
+      mount:
+        path: /nix
+        state: unmounted
+    - name: Remove references from /etc/fstab file
+      lineinfile:
+        path: /etc/fstab
+        state: absent
+        regexp: '\d{1,3}(\.\d{1,3}){3}:/nix /nix nfs defaults 0 0'
+
+- name: Remove files and dirs created by Nix
+  hosts: all
+  become: true
+  tasks:
+    - name: Remove /nix dir
+      file: 
+        path: /nix
+        state: absent
+    - name: Remove /var/run/nix
+      file:
+        path: /var/run/nix
+        state: absent
+    - name: Remove /etc/nix dir
+      file: 
+        path: /etc/nix
+        state: absent
+    - name: Remove /etc/profile/nix.sh file
+      file:
+        path: /etc/profile/nix.sh
+        state: absent
+    - name: Remove ~root/.nix-profile dir
+      file: 
+        path: ~root/.nix-profile
+        state: absent
+    - name: Remove ~root/.nix-defexpr dir
+      file: 
+        path: ~root/.nix-defexpr 
+        state: absent
+    - name: Remove ~root/.nix-channels
+      file:
+        path: ~root/.nix-channels
+        state: absent
+    - name: Remove ~/.nix-profile dir
+      file:
+        path: ~/.nix-profile
+        state: absent
+    - name: Remove ~/.nix-defexpr dir
+      file:
+        path: ~/.nix-defexpr 
+        state: absent
+    - name: Remove ~/.nix-channels dir
+      file:
+        path: ~/.nix-channels
+        state: absent
+    - name: Remove /etc/profile.d/nix.sh
+      file: 
+        path: /etc/profile.d/nix.sh
+        state: absent
+    - name: Remove /etc/bashrc.backup-before-nix
+      file:
+        path: /etc/bashrc.backup-before-nix
+        state: absent
+    - name: Remove /etc/zshrc.backup-before-nix
+      file:
+        path: /etc/zshrc.backup-before-nix
+        state: absent
+    - name: Remove /etc/zshrc.backup-before-nix
+      file: 
+        path: /etc/zsh/zshrc.backup-before-nix
+        state: absent
+    - name: Remove /etc/bash.bashrc.backup-before-nix
+      file: 
+        path: /etc/bash.bashrc.backup-before-nix
+        state: absent
+
+- name: Remove build users and their group
+  hosts: all
+  become: true
+  tasks:
+    - name: Remove nixbld users
+      shell: |
+        for i in $(seq 1 32); do
+          userdel nixbld$i
+        done
+    - name: Remove nixbld group
+      shell: groupdel nixbld
+  ignore_errors: true
+
+- name: Remove references to Nix
+  hosts: all
+  become: true
+  tasks:
+    - name: Remove line from /etc/bashrc file
+      lineinfile:
+        path: /etc/bashrc
+        state: absent
+        regexp: '^export NIX_CONF_DIR=/nix$'
+    - name: Remove line from /etc/bashrc file
+      lineinfile:
+        path: /etc/bashrc
+        state: absent
+        regexp: '# Nix.*|# End Nix'
+    - name: Remove line from /etc/bash.bashrc file
+      lineinfile:
+        path: /etc/bash.bashrc
+        state: absent
+        regexp: '# Nix.*|# End Nix'
+    - name: Remove line from /etc/bashrc file
+      lineinfile: 
+        path: /etc/bashrc
+        state: absent
+        regexp: '^export PATH=~/.nix-profile/bin:\$PATH$'
+    - name: Remove line from /etc/bashrc file
+      lineinfile:
+        path: /etc/bashrc
+        state: absent
+        regexp: '^export PATH=/nix/var/nix/profiles/default/bin:\$PATH$'
+    - name: Remove bash functions
+      blockinfile:
+        path: /etc/bashrc
+        block: ""
+        marker: "# {mark} NIX ANSIBLE MANAGED BLOCK"