| #!/usr/bin/env bash |
| # |
| # Licensed to the Apache Software Foundation (ASF) under one or more |
| # contributor license agreements. See the NOTICE file distributed with |
| # this work for additional information regarding copyright ownership. |
| # The ASF licenses this file to You under the Apache License, Version 2.0 |
| # (the "License"); you may not use this file except in compliance with |
| # the License. You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| # |
| |
| set -e |
| |
| # We need at least 3GB of free mem... |
| MIN_MEM_FREE_GB=3 |
| MIN_MEM_FREE_KB=$(($MIN_MEM_FREE_GB*1000000)) |
| |
| echo_mem_warn() { |
| MEM_FREE_KB=$(awk '/MemFree/ { printf "%s \n", $2 }' /proc/meminfo) |
| MEM_FREE_GB=$(awk '/MemFree/ { printf "%s \n", $2/1024/1024 }' /proc/meminfo) |
| |
| if [[ "${MEM_FREE_KB}" -lt "${MIN_MEM_FREE_KB}" ]]; then |
| cat <<EOF |
| =============================================== |
| ======== Memory Insufficient Warning ========= |
| =============================================== |
| |
| It looks like you only have ${MEM_FREE_GB}GB of |
| memory free. Please increase your Docker |
| resources to at least ${MIN_MEM_FREE_GB}GB |
| |
| =============================================== |
| ======== Memory Insufficient Warning ========= |
| =============================================== |
| EOF |
| else |
| echo "Memory check Ok [${MEM_FREE_GB}GB free]" |
| fi |
| } |
| |
| # Always nag if they're low on mem... |
| echo_mem_warn |