feat: start cron via entrypoint

010-pin-cids.sh

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/env sh
 
 # Mount this file into docker container:
 # docker run \
@@ -9,22 +9,26 @@
 
 set -e
 
+WGET_ARGS="--quiet --no-check-certificate"
 GATEWAY=${GATEWAY:-https://ipfs.io}
 
 echo "Fetching list of CIDs to pin"
+
 LIST=$(mktemp)
-wget https://raw.githubusercontent.com/lidofinance/csm-rewards/refs/heads/artifact/cids -O$LIST
+trap "rm $LIST" EXIT
+
+wget https://raw.githubusercontent.com/lidofinance/csm-rewards/refs/heads/artifact/cids -O$LIST $WGET_ARGS
 
 echo "Bootstrap pinned CIDs"
 while IFS= read -r cid; do
   {
-    set -x
-    ipfs pin add $cid && continue
+    ipfs pin add ${cid} && continue || echo "Fetching ${cid} from remote"
 
     FILE=$(mktemp)
-    wget $GATEWAY/ipfs/$cid -O$FILE --no-check-certificate
+    wget $GATEWAY/ipfs/${cid} -O$FILE $WGET_ARGS
     ipfs add $FILE && rm $FILE
     ipfs pin add $cid
   }
 done < $LIST
-rm $LIST
+
+echo "CIDs bootstrap complete!"

docker-compose.yml

@@ -5,14 +5,12 @@ services:
     restart: unless-stopped
     volumes:
       - ./010-pin-cids.sh:/container-init.d/010-pin-cids.sh
-      - .ipfs/:/data/ipfs
-    entrypoint: []
-    command:
+      - ./entrypoint.sh:/entrypoint.sh
+    entrypoint:
       - /sbin/tini
       - --
-      - timeout
-      - 600s
-      - /usr/local/bin/start_ipfs
+      - /entrypoint.sh
+    command:
       - daemon
       - --migrate=true
       - --agent-version-suffix=docker

entrypoint.sh

@@ -0,0 +1,17 @@
+#!/usr/bin/env sh
+
+# NOTE: crond has to be invoked by root, otherwise it won't be able to run a job.
+# crontab files have to have uid=0, and it's impossible to do via chown with no
+# root privileges. So all the crond-related commands are in the entrypoint.
+
+INIT_DIR=/container-init.d
+CRONTABS=$INIT_DIR/crontabs
+BOOTSTRAP_SCRIPT=$INIT_DIR/010-pin-cids.sh
+
+if [ ! -e $CRONTABS ]; then mkdir -p $CRONTABS; fi
+if [ ! -e $BOOTSTRAP_SCRIPT ]; then echo "Make sure $BOOTSTRAP_SCRIPT is mounted" && exit 1; fi
+
+printf "@hourly timeout 600s $BOOTSTRAP_SCRIPT >&2\n" > $CRONTABS/ipfs
+echo "Starting crond" && /bin/crond -c$CRONTABS
+
+exec /usr/local/bin/start_ipfs "$@"