No symlink deployment

tasks/main.yaml

@@ -29,6 +29,35 @@
 - name: EPICS setup
   include_tasks: epics_setup.yaml
 
+- name: Get info about deployment path
+  ansible.builtin.stat:
+    path: "{{ deployment_path }}"
+  register: deployment_path_info
+
+- name: Remove the old-style symlink if it exists
+  ansible.builtin.file:
+    path: "{{ deployment_path }}"
+    state: absent
+  when: deployment_path_info.stat.islnk is defined and deployment_path_info.stat.islnk
+
+- name: Create a folder for old deployments
+  become_user: "{{ deployment_user }}"
+  ansible.builtin.file:
+    path: "{{ old_deployments_path }}"
+    state: directory
+
+- name: Stop bec-server if it exists and running
+  ansible.builtin.systemd:
+    name: bec-server.service
+    state: stopped
+  register: systemd_stop_result
+  failed_when: "systemd_stop_result is failed and 'Could not find the requested service' not in systemd_stop_result.msg"
+
+- name: Move the previous deployment into an old deployments timestamped folder
+  ansible.builtin.command:
+    cmd: mv {{ deployment_path }} {{ old_deployments_path }}/{{ ansible_date_time['iso8601_basic_short'] }}
+  when: deployment_path_info.stat.exists and deployment_path_info.stat.isdir
+
 - name: Create a folder for BEC server logs
   ansible.builtin.file:
     owner: "{{ service_user }}"
@@ -38,7 +67,7 @@
 - name: Create a folder for BEC deployment
   become_user: "{{ deployment_user }}"
   ansible.builtin.file:
-    path: "{{ timestamped_deployment_path }}"
+    path: "{{ deployment_path }}"
     state: directory
 
 - name: Create a folder for secrets
@@ -90,28 +119,28 @@
   become_user: "{{ deployment_user }}"
   ansible.builtin.git:
     repo: https://github.com/bec-project/bec.git
-    dest: "{{ timestamped_deployment_path }}/bec"
+    dest: "{{ deployment_path }}/bec"
     version: "{{ bec_version }}"
 
 - name: Clone Ophyd Devices repository
   become_user: "{{ deployment_user }}"
   ansible.builtin.git:
     repo: https://github.com/bec-project/ophyd_devices.git
-    dest: "{{ timestamped_deployment_path }}/ophyd_devices"
+    dest: "{{ deployment_path }}/ophyd_devices"
     version: "{{ ophyd_devices_version }}"
 
 - name: Clone BEC Widgets repository
   become_user: "{{ deployment_user }}"
   ansible.builtin.git:
     repo: https://github.com/bec-project/bec_widgets.git
-    dest: "{{ timestamped_deployment_path }}/bec_widgets"
+    dest: "{{ deployment_path }}/bec_widgets"
     version: "{{ bec_widgets_version }}"
 
 - name: Create user branches in git repositories
   become_user: "{{ deployment_user }}"
   ansible.builtin.command:
     cmd: git switch -c {{ user_git_branch_name }}
-    chdir: "{{ timestamped_deployment_path }}/{{ item }}"
+    chdir: "{{ deployment_path }}/{{ item }}"
   loop:
     - bec
     - ophyd_devices
@@ -124,7 +153,7 @@
     name: user.name
     value: "{{ git_username }}"
     scope: local
-    repo: "{{ timestamped_deployment_path }}/{{ item }}"
+    repo: "{{ deployment_path }}/{{ item }}"
   loop:
     - bec
     - ophyd_devices
@@ -137,7 +166,7 @@
     name: user.email
     value: "{{ git_username }}@psi.ch"
     scope: local
-    repo: "{{ timestamped_deployment_path }}/{{ item }}"
+    repo: "{{ deployment_path }}/{{ item }}"
   loop:
     - bec
     - ophyd_devices
@@ -150,7 +179,7 @@
     name: pull.rebase
     value: true
     scope: local
-    repo: "{{ timestamped_deployment_path }}/{{ item }}"
+    repo: "{{ deployment_path }}/{{ item }}"
   loop:
     - bec
     - ophyd_devices
@@ -163,7 +192,7 @@
     name: core.sharedRepository
     value: group
     scope: local
-    repo: "{{ timestamped_deployment_path }}/{{ item }}"
+    repo: "{{ deployment_path }}/{{ item }}"
   loop:
     - bec
     - ophyd_devices
@@ -174,7 +203,7 @@
   become_user: "{{ deployment_user }}"
   ansible.builtin.git:
     repo: https://git:{{ bec_bl_push_pat }}@gitea.psi.ch/bec/{{ item.key }}.git
-    dest: "{{ timestamped_deployment_path }}/{{ item.key }}"
+    dest: "{{ deployment_path }}/{{ item.key }}"
     version: "{{ item.value or 'main' }}"
   loop: "{{ bec_plugins | dict2items }}"
   when: not ansible_check_mode
@@ -183,7 +212,7 @@
   become_user: "{{ deployment_user }}"
   ansible.builtin.command:
     cmd: git switch -c {{ user_git_branch_name }}
-    chdir: "{{ timestamped_deployment_path }}/{{ item.key }}"
+    chdir: "{{ deployment_path }}/{{ item.key }}"
   loop: "{{ bec_plugins | dict2items }}"
   when: not ansible_check_mode
 
@@ -193,7 +222,7 @@
     name: user.name
     value: "{{ git_username }}"
     scope: local
-    repo: "{{ timestamped_deployment_path }}/{{ item.key }}"
+    repo: "{{ deployment_path }}/{{ item.key }}"
   loop: "{{ bec_plugins | dict2items }}"
   when: not ansible_check_mode
 
@@ -203,7 +232,7 @@
     name: user.email
     value: "{{ git_username }}@psi.ch"
     scope: local
-    repo: "{{ timestamped_deployment_path }}/{{ item.key }}"
+    repo: "{{ deployment_path }}/{{ item.key }}"
   loop: "{{ bec_plugins | dict2items }}"
   when: not ansible_check_mode
 
@@ -213,7 +242,7 @@
     name: pull.rebase
     value: true
     scope: local
-    repo: "{{ timestamped_deployment_path }}/{{ item.key }}"
+    repo: "{{ deployment_path }}/{{ item.key }}"
   loop: "{{ bec_plugins | dict2items }}"
   when: not ansible_check_mode
 
@@ -223,14 +252,14 @@
     name: core.sharedRepository
     value: group
     scope: local
-    repo: "{{ timestamped_deployment_path }}/{{ item.key }}"
+    repo: "{{ deployment_path }}/{{ item.key }}"
   loop: "{{ bec_plugins | dict2items }}"
   when: not ansible_check_mode
 
 - name: Install bec_lib
   become_user: "{{ deployment_user }}"
   ansible.builtin.pip:
-    name: "{{ timestamped_deployment_path }}/bec/bec_lib"
+    name: "{{ deployment_path }}/bec/bec_lib"
     editable: true
     virtualenv_command: "{{ python_version }} -m venv"
     virtualenv: "{{ bec_venv_path }}"
@@ -240,7 +269,7 @@
 - name: Install bec_ipython_client
   become_user: "{{ deployment_user }}"
   ansible.builtin.pip:
-    name: "{{ timestamped_deployment_path }}/bec/bec_ipython_client"
+    name: "{{ deployment_path }}/bec/bec_ipython_client"
     editable: true
     virtualenv_command: "{{ python_version }} -m venv"
     virtualenv: "{{ bec_venv_path }}"
@@ -248,7 +277,7 @@
 - name: Install ophyd_devices
   become_user: "{{ deployment_user }}"
   ansible.builtin.pip:
-    name: "{{ timestamped_deployment_path }}/ophyd_devices"
+    name: "{{ deployment_path }}/ophyd_devices"
     editable: true
     virtualenv_command: "{{ python_version }} -m venv"
     virtualenv: "{{ bec_venv_path }}"
@@ -258,7 +287,7 @@
 - name: Install bec_widgets
   become_user: "{{ deployment_user }}"
   ansible.builtin.pip:
-    name: "{{ timestamped_deployment_path }}/bec_widgets[pyside6]"
+    name: "{{ deployment_path }}/bec_widgets[pyside6]"
     editable: true
     virtualenv_command: "{{ python_version }} -m venv"
     virtualenv: "{{ bec_venv_path }}"
@@ -266,7 +295,7 @@
 - name: Install bec_server
   become_user: "{{ deployment_user }}"
   ansible.builtin.pip:
-    name: "{{ timestamped_deployment_path }}/bec/bec_server"
+    name: "{{ deployment_path }}/bec/bec_server"
     editable: true
     virtualenv_command: "{{ python_version }} -m venv"
     virtualenv: "{{ bec_venv_path }}"
@@ -276,7 +305,7 @@
 - name: Install BEC plugins
   become_user: "{{ deployment_user }}"
   ansible.builtin.pip:
-    name: "{{ timestamped_deployment_path }}/{{ item.key }}"
+    name: "{{ deployment_path }}/{{ item.key }}"
     editable: true
     virtualenv_command: "{{ python_version }} -m venv"
     virtualenv: "{{ bec_venv_path }}"
@@ -287,14 +316,14 @@
 - name: Create BEC deployment config directory
   become_user: "{{ deployment_user }}"
   ansible.builtin.file:
-    path: "{{ timestamped_deployment_path }}/deployment_configs"
+    path: "{{ deployment_path }}/deployment_configs"
     state: directory
 
 - name: Copy BEC service config
   become_user: "{{ deployment_user }}"
   ansible.builtin.template:
     src: bec_config_server.yaml.j2
-    dest: "{{ timestamped_deployment_path }}/deployment_configs/server.yaml"
+    dest: "{{ deployment_path }}/deployment_configs/server.yaml"
   notify:
     - (Re-)start BEC server
 
@@ -302,7 +331,7 @@
   become_user: "{{ deployment_user }}"
   ansible.builtin.template:
     src: bec_config_client.yaml.j2
-    dest: "{{ timestamped_deployment_path }}/deployment_configs/client.yaml"
+    dest: "{{ deployment_path }}/deployment_configs/client.yaml"
 
 - name: Copy BEC service files
   ansible.builtin.template:
@@ -319,26 +348,18 @@
   notify:
     - (Re-)start BEC server
 
-- name: Create a link to the current deployment
-  become_user: "{{ deployment_user }}"
-  ansible.builtin.file:
-    src: "{{ timestamped_deployment_path }}"
-    dest: "{{ deployment_path_prefix }}/{{ deployment_name }}"
-    state: link
-  when: not ansible_check_mode
-
 - name: Copy BEC set account binary
   become_user: "{{ deployment_user }}"
   ansible.builtin.copy:
     src: bec_set_account
-    dest: "{{ timestamped_deployment_path }}/bin/"
+    dest: "{{ deployment_path }}/bin/"
     mode: u+x,g+x
 
 - name: Copy BEC set account script
   become_user: "{{ deployment_user }}"
   ansible.builtin.template:
     src: bec-set-account.j2
-    dest: "{{ timestamped_deployment_path }}/bec-set-account"
+    dest: "{{ deployment_path }}/bec-set-account"
     mode: u+x,g+rx
 
 - name: Add bec startup script

templates/bec-server.service.j2

@@ -5,7 +5,7 @@ Description=bec-server service
 Type=oneshot
 RemainAfterExit=yes
 User={{ service_user }}
-WorkingDirectory={{ timestamped_deployment_path }}
+WorkingDirectory={{ deployment_path }}
 ExecStart=/bin/bash /usr/local/sbin/bec-server.sh
 Restart=on-failure
 

templates/bec-server.sh.j2

@@ -1,2 +1,2 @@
 source {{ bec_venv_path }}/bin/activate
-exec bec-server start --config {{ timestamped_deployment_path }}/deployment_configs/server.yaml --interface tmux
+exec bec-server start --config {{ deployment_path }}/deployment_configs/server.yaml --interface tmux

templates/bec-set-account.j2

@@ -15,4 +15,4 @@ if [ $# -ne 1 ]; then
     exit 1
 fi
 
-exec {{ timestamped_deployment_path }}/bin/bec_set_account -redis-host {{ ansible_hostname }} -pgroup "$1"
+exec {{ deployment_path }}/bin/bec_set_account -redis-host {{ ansible_hostname }} -pgroup "$1"

templates/bec.j2

@@ -1,4 +1,4 @@
 #!/bin/sh
 
 source {{ bec_venv_path }}/bin/activate
-exec bec --config {{ timestamped_deployment_path }}/deployment_configs/client.yaml "$@"
+exec bec --config {{ deployment_path }}/deployment_configs/client.yaml "$@"

vars/main.yaml

@@ -1,8 +1,8 @@
 ---
 python_version: python3.12
-deployment_path: "{{ deployment_path_prefix }}/{{ deployment_name }}_deployments"
-timestamped_deployment_path: "{{ deployment_path }}/{{ ansible_date_time['iso8601_basic_short'] }}"
-bec_venv_path: "{{ timestamped_deployment_path }}/bec_venv"
+deployment_path: "{{ deployment_path_prefix }}/{{ deployment_name }}"
+old_deployments_path: "{{ deployment_path_prefix }}/old_{{ deployment_name }}_deployments"
+bec_venv_path: "{{ deployment_path }}/bec_venv"
 user_git_branch_name: "{{ git_username }}_{{ deployment_name }}_{{ ansible_date_time['iso8601_basic_short'] }}"
 bec_atlas_token: "{{ lookup('file', 'bec_atlas_token') }}"
 bec_bl_push_pat: "{{ lookup('file', 'bec_bl_push_pat') }}"