Modernize 'errors' Django app

.github/copilot-instructions.md

@@ -51,6 +51,7 @@ src/                  # Error Tracker application source
     amqp_utils.py     #     RabbitMQ/AMQP utilities
     config.py         #     Configuration handling
     utils.py          #     Shared utilities
+  populate-test-data.sh #   Script to put test data into a local Cassandra (for development)
   retracer/           #   Symbolic retracer (turns addresses into stack frames)
     config/           #     Per-release retracer configuration
   retracer.py         #   Retracer entry point
@@ -101,7 +102,7 @@ The application relies on:
 
 ### Test Architecture
 
-There are two layers of testing:
+There are multiple layers of testing:
 
 1. **Unit/functional tests** (`src/tests/`) — pytest-based tests that require Cassandra, RabbitMQ, and Swift running locally. These test individual components (submission, retracing, Cassandra operations, OOPS processing).
 

README.md

@@ -61,6 +61,8 @@ errors:
 ./run-errors.sh
 ```
 
+If you need test data in Cassandra, you can run the `./populate-test-data.sh` in that same folder.
+
 From there, you can manually upload a crash with the following, from any folder
 containing a `.crash` file with its corresponding `.upload` file:
 ```

charmcraft.yaml

@@ -15,8 +15,11 @@ links:
   source:
     - https://github.com/ubuntu/error-tracker/
 
+# platforms:
+#   ubuntu@24.04:amd64:
+base: ubuntu@24.04
 platforms:
-  ubuntu@24.04:amd64:
+  amd64:
 
 parts:
   error-tracker:

spread.yaml

@@ -14,7 +14,7 @@ backends:
       CONTAINER_NAME="error-tracker-${SPREAD_SYSTEM/./-}-${RANDOM}"
       DISK="${DISK:-30}"
       CPU="${CPU:-4}"
-      MEM="${MEM:-5}"
+      MEM="${MEM:-4}"
 
       lxc launch --vm -e \
         "${SPREAD_SYSTEM/-/:}" \
@@ -44,7 +44,6 @@ suites:
     prepare: |
       apt-get update
       apt-get install -y --no-install-recommends docker.io
-      apt-get install -y --no-install-recommends linux-modules-extra-$(uname -r) zram-tools
       apt-get install -y --no-install-recommends \
           apport-retrace \
           git \