units_submiter.sh

#!/bin/bash

DESIRED_STATE="launched"
ETCD_TIMEOUT=2s

for i in {1..1000}; do
  LOCALFILENAME="app$i.service"
  echo "Submiting $LOCALFILENAME"

  LOCALFILE="[Unit]
Description=hole

[Service]
ExecStart=/usr/bin/bash -c 'while true; do echo \"Hello, world $i\"; sleep 1; done'"

  echo "Attempting to update unit file in etcd"
  LOCALHASH=$(echo "$LOCALFILE" | sha1sum | awk '{print $1}')
  ESCAPED_STRING=$(echo "$LOCALFILE" | sed ":a;N;\$!ba;s#\\\#\\\\\\\#g;s#\n#\\\n#g;s#\\\"#\\\\\"#g;s#\r#\\\r#g;s#\t#\\\t#g")
  LOCALHASH_DEC=$(echo "$LOCALHASH" | sed -r 's#(.{2})#0x\1,#g' | tr -d '\n' | xargs -d ',' printf "%d," | sed 's#,$##')
  NEW_JSON="{\"Raw\":\"$ESCAPED_STRING\\n\"}"
  etcdctl --timeout $ETCD_TIMEOUT set /_coreos.com/fleet/unit/$LOCALHASH "$NEW_JSON"
  NEW_OBJECT="{\"Name\":\"$LOCALFILENAME\",\"UnitHash\":[$LOCALHASH_DEC]}"
  etcdctl --timeout $ETCD_TIMEOUT set /_coreos.com/fleet/job/$LOCALFILENAME/object "$NEW_OBJECT" &
  etcdctl --timeout $ETCD_TIMEOUT set /_coreos.com/fleet/job/$LOCALFILENAME/target-state "$DESIRED_STATE" &
done

wait