do not use top level dir /tmp

Author: x3c41a

examples/justfile

@@ -116,21 +116,23 @@ bulletin-solo-zombienet-start runtime="bulletin-polkadot-runtime":
 
         # Run zombienet from root directory so relative paths in config work correctly
         ZOMBIENET_CONFIG=$(cd .. && pwd)/zombienet/bulletin-westend-local.toml
+        mkdir -p {{ ZOMBIENET_DIR }}
         (cd .. && POLKADOT_BINARY_PATH=$POLKADOT_BINARY_PATH \
           POLKADOT_PARACHAIN_BINARY_PATH=$POLKADOT_PARACHAIN_BINARY_PATH \
-          $ZOMBIENET_BIN -p native spawn --dir {{ ZOMBIENET_DIR }} $ZOMBIENET_CONFIG > /tmp/zombienet.log 2>&1) &
+          $ZOMBIENET_BIN -p native spawn --dir {{ ZOMBIENET_DIR }} $ZOMBIENET_CONFIG > {{ ZOMBIENET_DIR }}/zombienet.log 2>&1) &
     else # bulletin-polkadot-runtime
         echo "   Setting up Polkadot runtime..."
         # Build the node binary (which will build the runtime as a dependency)
         cargo build --release -p polkadot-bulletin-chain
         BULLETIN_BINARY=$(cd .. && pwd)/target/release/polkadot-bulletin-chain
         ZOMBIENET_CONFIG=$(cd .. && pwd)/zombienet/bulletin-polkadot-local.toml
-        (cd .. && POLKADOT_BULLETIN_BINARY_PATH=$BULLETIN_BINARY $ZOMBIENET_BIN -p native spawn --dir {{ ZOMBIENET_DIR }} $ZOMBIENET_CONFIG > /tmp/zombienet.log 2>&1) &
+        mkdir -p {{ ZOMBIENET_DIR }}
+        (cd .. && POLKADOT_BULLETIN_BINARY_PATH=$BULLETIN_BINARY $ZOMBIENET_BIN -p native spawn --dir {{ ZOMBIENET_DIR }} $ZOMBIENET_CONFIG > {{ ZOMBIENET_DIR }}/zombienet.log 2>&1) &
     fi
     ZOMBIENET_PID=$!
     echo $ZOMBIENET_PID > {{ PID_DIR }}/zombienet.pid
     echo "   Zombienet PID: $ZOMBIENET_PID"
-    echo "   Log: /tmp/zombienet.log"
+    echo "   Log: {{ ZOMBIENET_DIR }}/zombienet.log"
     echo "   Waiting for chain to start (120 seconds)..."
     sleep 120
 
@@ -231,16 +233,17 @@ ipfs-reconnect-start runtime="bulletin-polkadot-runtime":
     echo "🔄 Starting IPFS reconnect script (Docker mode, runtime: {{ runtime }})..."
 
     # Use different reconnect script for westend
+    mkdir -p {{ ZOMBIENET_DIR }}
     if [ "{{ runtime }}" = "bulletin-westend-runtime" ]; then
-        ./scripts/ipfs-reconnect-westend.sh docker > /tmp/ipfs-reconnect-docker.log 2>&1 &
+        ./scripts/ipfs-reconnect-westend.sh docker > {{ ZOMBIENET_DIR }}/ipfs-reconnect.log 2>&1 &
     else
-        ./scripts/ipfs-reconnect-solo.sh docker > /tmp/ipfs-reconnect-docker.log 2>&1 &
+        ./scripts/ipfs-reconnect-solo.sh docker > {{ ZOMBIENET_DIR }}/ipfs-reconnect.log 2>&1 &
     fi
 
     RECONNECT_PID=$!
     echo $RECONNECT_PID > {{ PID_DIR }}/ipfs-reconnect-docker.pid
     echo "   Reconnect PID: $RECONNECT_PID"
-    echo "   Log: /tmp/ipfs-reconnect-docker.log"
+    echo "   Log: {{ ZOMBIENET_DIR }}/ipfs-reconnect.log"
     sleep 2
 
 # Generate PAPI descriptors
@@ -273,7 +276,7 @@ setup-services runtime="bulletin-polkadot-runtime":
     echo "   Zombienet process check:"
     ps aux | grep zombienet | grep -v grep || echo "   ⚠ No zombienet process found"
     echo "   Checking zombienet log:"
-    tail -20 /tmp/zombienet.log || echo "   ⚠ Could not read zombienet log"
+    tail -20 {{ ZOMBIENET_DIR }}/zombienet.log || echo "   ⚠ Could not read zombienet log"
 
     just ipfs-connect {{ runtime }}
     just ipfs-reconnect-start {{ runtime }}