Add a first version of Dockerfile and compose

issues:
- pip installs into user home, which is on a volume. not good!
- we install from pypi, we'd also want to install from git source at
  some point

Dockerfile

@@ -0,0 +1,24 @@
+FROM python:3.11-slim
+# Create user, we need $HOME/.config
+RUN useradd --create-home --shell /bin/bash synapseadmin
+# Create app dir and switch context (irrelevant on pypi inst)
+RUN mkdir /synadm_app
+WORKDIR /synadm_app
+COPY . .
+
+WORKDIR /home/synapseadmin
+RUN \
+    chown -R synapseadmin:synapseadmin /home/synapseadmin && \
+    chmod -R 755 /home/synapseadmin
+# User home on volume (will be prepoluated on first init)
+VOLUME /home/synapseadmin
+# Run as non-root user from here
+USER synapseadmin
+# Add user bin to path
+ENV PATH="/home/synapseadmin/.local/bin:$PATH"
+# Install synadm from pypi
+RUN pip install --upgrade pip && \
+    pip install --no-cache-dir synadm && \
+    chown -R synapseadmin:synapseadmin /home/synapseadmin && \
+    chmod -R 755 /home/synapseadmin
+

docker-compose.yaml

@@ -0,0 +1,9 @@
+services:
+  synadm_app:
+    build: .
+    container_name: synadm
+    image: synadm_image
+    #volumes:
+    #  - ./home/synapseadmin:/home/synapseadmin
+    stdin_open: true
+    tty: true