update ci dockerfiles

Author: minrk

ci/slurm/Dockerfile

@@ -1,12 +1,17 @@
-# syntax = docker/dockerfile:1.2.1
 FROM ubuntu:24.04
 
 ENV DEBIAN_FRONTEND=noninteractive
 RUN --mount=type=cache,target=/var/cache/apt \
  rm -f /etc/apt/apt.conf.d/docker-clean \
- && apt-get update && apt-get -y install python3-pip slurm-wlm
-ENV PIP_CACHE_DIR=/tmp/pip-cache
-RUN --mount=type=cache,target=${PIP_CACHE_DIR} python3 -m pip install ipyparallel pytest-asyncio pytest-cov
+ && apt-get update && apt-get -y install python3-pip slurm-wlm python3-venv
+
+ENV PIP_CACHE_DIR=/tmp/pip-cache \
+    VIRTUAL_ENV=/srv/env \
+    PATH=/srv/env/bin:${PATH}
+
+RUN --mount=type=cache,target=${PIP_CACHE_DIR} \
+    python3 -m venv $VIRTUAL_ENV \
+ && $VIRTUAL_ENV/bin/python3 -m pip install ipyparallel pytest-asyncio pytest-cov
 RUN mkdir /var/spool/slurmctl \
  && mkdir /var/spool/slurmd
 COPY slurm.conf /etc/slurm-llnl/slurm.conf

ci/slurm/docker-compose.yaml

@@ -1,5 +1,3 @@
-version: "2.2"
-
 services:
   slurmctld:
     image: ipp-cluster:slurm

ci/ssh/Dockerfile

@@ -1,4 +1,3 @@
-# syntax = docker/dockerfile:1.2.1
 FROM ubuntu:24.04
 RUN --mount=type=cache,target=/var/cache/apt \
     rm -f /etc/apt/apt.conf.d/docker-clean \