Moved printing into its own separate project called frank. It also has its own toml and deployement system.

It also works on a raspberry pi

docker/app/frank.Dockerfile

@@ -0,0 +1,24 @@
+FROM python:latest
+RUN mkdir /app
+WORKDIR /app
+ADD https://git.tanshu.com/tanshu/barker/raw/branch/main/frank/pyproject.toml /app/pyproject.toml
+
+# Install Poetry
+RUN curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py | POETRY_HOME=/opt/poetry python && \
+    cd /usr/local/bin && \
+    ln -s /opt/poetry/bin/poetry && \
+    poetry config virtualenvs.create false && \
+    cd /app && \
+    poetry install --no-root --no-dev
+
+ADD https://git.tanshu.com/api/v1/repos/tanshu/barker/tags /tags.json
+RUN git clone --single-branch --depth 1 https://git.tanshu.com/tanshu/barker.git /repo
+RUN mv /repo/frank/* /app
+
+ENV PYTHONPATH=/app
+
+RUN chmod 777 /app/worker-start.sh \
+    && ln -s /app/worker-start.sh /usr/local/bin/worker-start.sh \
+    && ln -s /app/worker-start.sh /
+
+CMD ["bash", "worker-start.sh"]

docker/app/worker.Dockerfile

@@ -1,8 +0,0 @@
-FROM barker:latest
-LABEL maintainer="Amritanshu <docker@tanshu.com>"
-
-RUN chmod 777 /app/worker-start.sh \
-    && ln -s /app/worker-start.sh /usr/local/bin/worker-start.sh \
-    && ln -s /app/worker-start.sh /
-
-CMD ["bash", "worker-start.sh"]

docker/files/chd-worker.env

@@ -1,3 +0,0 @@
-WORKER_REDIS_HOST=redis
-WORKER_REDIS_PORT=6379
-WORKER_QUEUE_NAME="DJ Computer"

docker/files/frank.env

@@ -0,0 +1,3 @@
+REDIS_HOST=localhost
+REDIS_PORT=6379
+QUEUE_NAME=DJ Computer

docker/files/pkl-worker.env

@@ -1,3 +0,0 @@
-WORKER_REDIS_HOST=redis
-WORKER_REDIS_PORT=6379
-WORKER_QUEUE_NAME="Ground Floor Printer"

docker/playbook-chd.yml

@@ -21,26 +21,11 @@
         state: present
         source: build
 
-    - name: Build barker worker image
-      docker_image:
-        name: barker-worker:latest
-        build:
-          path: /tmp/app/
-          dockerfile: /tmp/app/worker.Dockerfile
-          pull: yes
-        state: present
-        source: build
-
     - name: Upload the .env file
       template:
         src: "files/chd.env"
         dest: "/var/lib/{{ host_directory }}/.env"
 
-    - name: Upload the worker .env file
-      template:
-        src: "files/chd-worker.env"
-        dest: "/var/lib/{{ host_directory }}/worker.env"
-
     - name: Create barker container
       docker_container:
         name: "{{ host_directory }}"
@@ -56,17 +41,6 @@
         volumes:
           - "/var/lib/{{ host_directory }}/frontend:/frontend"
 
-    - name: Create barker worker container
-      docker_container:
-        name: "{{ host_directory }}-worker"
-        image: barker-worker:latest
-        state: started
-        restart_policy: "unless-stopped"
-        env_file: "/var/lib/{{ host_directory }}/worker.env"
-        links:
-          - "redis:redis"
-
-
     - name: Check if Nginx conf file exists
       stat: path="/etc/nginx/sites-available/{{ http_conf }}"
       register: status

docker/playbook-frank.yml

@@ -0,0 +1,38 @@
+#################################################
+# DO Community Playbooks: Docker
+#################################################
+---
+- hosts: all
+  become: true
+  vars_files:
+    - vars/frank.yml
+
+  tasks:
+    - name: Copy dockerfile
+      synchronize: src=app dest=/tmp
+
+    - name: Build frank image
+      docker_image:
+        name: frank:latest
+        build:
+          path: /tmp/app/
+          dockerfile: /tmp/app/frank.Dockerfile
+          pull: yes
+        state: present
+        source: build
+
+    - name: Upload the worker .env file
+      template:
+        src: "files/frank.env"
+        dest: "/home/pi/frank.env"
+
+    - name: Create frank worker container
+      docker_container:
+        name: "frank"
+        image: frank:latest
+        state: started
+        restart_policy: "unless-stopped"
+        env_file: "/home/pi/frank.env"
+        network_mode: "host"
+        devices:
+          - "{{ printer_port }}:/printer"

docker/playbook-pkl.yml

@@ -21,26 +21,11 @@
         state: present
         source: build
 
-    - name: Build barker worker image
-      docker_image:
-        name: barker-worker:latest
-        build:
-          path: /tmp/app/
-          dockerfile: /tmp/app/worker.Dockerfile
-          pull: yes
-        state: present
-        source: build
-
     - name: Upload the .env file
       template:
         src: "files/pkl.env"
         dest: "/var/lib/{{ host_directory }}/.env"
 
-    - name: Upload the worker .env file
-      template:
-        src: "files/pkl-worker.env"
-        dest: "/var/lib/{{ host_directory }}/worker.env"
-
     - name: Create barker container
       docker_container:
         name: "{{ host_directory }}"
@@ -56,17 +41,6 @@
         volumes:
           - "/var/lib/{{ host_directory }}/frontend:/frontend"
 
-    - name: Create barker worker container
-      docker_container:
-        name: "{{ host_directory }}-worker"
-        image: barker-worker:latest
-        state: started
-        restart_policy: "unless-stopped"
-        env_file: "/var/lib/{{ host_directory }}/worker.env"
-        links:
-          - "redis:redis"
-
-
     - name: Check if Nginx conf file exists
       stat: path="/etc/nginx/sites-available/{{ http_conf }}"
       register: status

docker/vars/frank.yml

@@ -0,0 +1,2 @@
+---
+printer_port: "/dev/usb/lp0"