fix: devcontainer small qol fixes (#1228)

Author: alec-flowers

.devcontainer/post-create.sh

@@ -64,7 +64,15 @@ cd $HOME/dynamo && retry env DYNAMO_BIN_PATH=$HOME/dynamo/.build/target/debug uv
 
 export PYTHONPATH=/home/ubuntu/dynamo/components/planner/src:$PYTHONPATH
 
-# source the venv and set the VLLM_KV_CAPI_PATH in bashrc
-echo "source /opt/dynamo/venv/bin/activate" >> ~/.bashrc
-echo "export VLLM_KV_CAPI_PATH=$HOME/dynamo/.build/target/debug/libdynamo_llm_capi.so" >> ~/.bashrc
-echo "export GPG_TTY=$(tty)" >> ~/.bashrc
+# Add to bashrc only if not already present
+if ! grep -q "source /opt/dynamo/venv/bin/activate" ~/.bashrc; then
+    echo "source /opt/dynamo/venv/bin/activate" >> ~/.bashrc
+fi
+
+if ! grep -q "export VLLM_KV_CAPI_PATH=" ~/.bashrc; then
+    echo "export VLLM_KV_CAPI_PATH=$HOME/dynamo/.build/target/debug/libdynamo_llm_capi.so" >> ~/.bashrc
+fi
+
+if ! grep -q "export GPG_TTY=" ~/.bashrc; then
+    echo "export GPG_TTY=$(tty)" >> ~/.bashrc
+fi

container/Dockerfile.vllm

@@ -297,8 +297,12 @@ COPY --from=base --chown=$USERNAME:$USERNAME /usr/local/bin /usr/local/bin
 USER $USERNAME
 ENV HOME=/home/$USERNAME
 ENV PYTHONPATH=$HOME/dynamo/deploy/sdk/src:$PYTHONPATH:$HOME/dynamo/components/planner/src:$PYTHONPATH
+ENV CARGO_TARGET_DIR=$HOME/dynamo/.build/target
 WORKDIR $HOME
 
+# so we can use maturin develop
+RUN uv pip install maturin
+
 # https://code.visualstudio.com/remote/advancedcontainers/persist-bash-history
 RUN SNIPPET="export PROMPT_COMMAND='history -a' && export HISTFILE=$HOME/.commandhistory/.bash_history" \
     && mkdir -p $HOME/.commandhistory \