docker-tests: add test for server expiration cleanup

docker-tests/run-docker-tests.sh

@@ -77,7 +77,7 @@ cmd docker exec "$PEER1_CONTAINER" innernet \
     --admin false \
     --auto-ip \
     --save-config "/app/peer2.toml" \
-    --invite-expires "30d" \
+    --invite-expires "30s" \
     --yes
 cmd docker cp "$PEER1_CONTAINER:/app/peer2.toml" "$tmp_dir"
 
@@ -93,7 +93,35 @@ cmd docker cp "$tmp_dir/peer2.toml" "$PEER2_CONTAINER:/app/invite.toml"
 cmd docker start "$PEER2_CONTAINER"
 sleep 10
 
-# read -p "Press enter to continue. " -n 1 -r
+info "Creating short-lived invitation for third peer."
+cmd docker exec "$PEER1_CONTAINER" innernet \
+    add-peer evilcorp \
+    --name "peer3" \
+    --cidr "robots" \
+    --admin false \
+    --ip "10.66.2.100" \
+    --save-config "/app/peer3.toml" \
+    --invite-expires "5s" \
+    --yes
+
+info "waiting 15 seconds to see if the server clears out the IP address."
+sleep 15
+
+info "Re-requesting invite after expiration with the same parameters."
+cmd docker exec "$PEER1_CONTAINER" innernet \
+    add-peer evilcorp \
+    --name "peer3" \
+    --cidr "robots" \
+    --admin false \
+    --ip "10.66.2.100" \
+    --save-config "/app/peer3_2.toml" \
+    --invite-expires "30m" \
+    --yes
+
+info "peer2 started as $PEER2_CONTAINER"
+cmd docker cp "$tmp_dir/peer2.toml" "$PEER2_CONTAINER:/app/invite.toml"
+cmd docker start "$PEER2_CONTAINER"
+sleep 10
 
 info "Checking connectivity betweeen peers."
 cmd docker exec "$PEER2_CONTAINER" ping -c3 10.66.0.1