fix: Dockerfile import snapshot

Dockerfile

@@ -73,7 +73,7 @@ COPY --from=lotus-builder /opt/filecoin/lotus /usr/local/bin/
 COPY --from=lotus-builder /opt/filecoin/lotus-shed /usr/local/bin/
 COPY scripts/docker-lotus-entrypoint.sh /
 
-ARG DOCKER_LOTUS_IMPORT_SNAPSHOT https://snapshots.mainnet.filops.net/minimal/latest
+ARG DOCKER_LOTUS_IMPORT_SNAPSHOT=https://forest-archive.chainsafe.dev/latest/mainnet/
 ENV DOCKER_LOTUS_IMPORT_SNAPSHOT ${DOCKER_LOTUS_IMPORT_SNAPSHOT}
 ENV FILECOIN_PARAMETER_CACHE /var/tmp/filecoin-proof-parameters
 ENV LOTUS_PATH /var/lib/lotus

scripts/docker-lotus-entrypoint.sh

@@ -1,18 +1,21 @@
 #!/usr/bin/env bash
 
-if [ ! -z $DOCKER_LOTUS_IMPORT_SNAPSHOT ]; then
+if [ ! -z "$DOCKER_LOTUS_IMPORT_SNAPSHOT" ]; then
 	GATE="$LOTUS_PATH"/date_initialized
 	# Don't init if already initialized.
 	if [ ! -f "$GATE" ]; then
 		echo importing minimal snapshot
-		/usr/local/bin/lotus daemon --import-snapshot "$DOCKER_LOTUS_IMPORT_SNAPSHOT" --halt-after-import
+		/usr/local/bin/lotus daemon \
+			--import-snapshot "$DOCKER_LOTUS_IMPORT_SNAPSHOT" \
+			--remove-existing-chain=false \
+			--halt-after-import
 		# Block future inits
 		date > "$GATE"
 	fi
 fi
 
 # import wallet, if provided
-if [ ! -z $DOCKER_LOTUS_IMPORT_WALLET ]; then
+if [ ! -z "$DOCKER_LOTUS_IMPORT_WALLET" ]; then
 	/usr/local/bin/lotus-shed keyinfo import "$DOCKER_LOTUS_IMPORT_WALLET"
 fi