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Unitech
PM2 logs errors when running in distroless
What's going wrong?
When running an app in docker on a distroless base image, we see these two errors being logged.
The Dockerfile
FROM node:12 AS build-env
ENV HOME=/usr/src/app
ENV NPM_CONFIG_PREFIX=$HOME/.npm-global
WORKDIR /usr/src/app
COPY . .
RUN npm ci --only=production
RUN npm i -g pm2
FROM gcr.io/distroless/nodejs:12-debug
COPY --from=build-env /usr/src/app /app
WORKDIR /app
EXPOSE 3000
ENV PATH=$PATH:/nodejs/bin
CMD [ ".npm-global/bin/pm2-runtime", "--format", "pm2.json" ]
error logged while running, doesn't affect the process
2020-11-04T16:30:58: PM2 error: Error while getting CLK_TCK Error: spawn /bin/sh ENOENT
at Process.ChildProcess._handle.onexit (internal/child_process.js:267:19)
at onErrorNT (internal/child_process.js:469:16)
at processTicksAndRejections (internal/process/task_queues.js:84:21) {
errno: 'ENOENT',
code: 'ENOENT',
syscall: 'spawn /bin/sh',
path: '/bin/sh',
spawnargs: [ '-c', 'getconf CLK_TCK' ],
cmd: 'getconf CLK_TCK'
}
2020-11-04T16:30:58: PM2 error: Error while getting PAGESIZE Error: spawn /bin/sh ENOENT
at Process.ChildProcess._handle.onexit (internal/child_process.js:267:19)
at onErrorNT (internal/child_process.js:469:16)
at processTicksAndRejections (internal/process/task_queues.js:84:21) {
errno: 'ENOENT',
code: 'ENOENT',
syscall: 'spawn /bin/sh',
path: '/bin/sh',
spawnargs: [ '-c', 'getconf PAGESIZE' ],
cmd: 'getconf PAGESIZE'
}
How could we reproduce this issue?
Run a simple application under pm2 on a distroless container.
Supporting information
--- PM2 report ----------------------------------------------------------------
Date : Wed Nov 04 2020 16:54:07 GMT+0000 (Coordinated Universal Time)
===============================================================================
--- Daemon -------------------------------------------------
pm2d version : 4.5.0
node version : 12.18.3
node path : not found
argv : /nodejs/bin/node,/usr/src/example/.npm-global/lib/node_modules/pm2/lib/Daemon.js
argv0 : node
user : undefined
uid : 0
gid : 0
uptime : 0min
===============================================================================
--- CLI ----------------------------------------------------
local pm2 : 4.5.0
node version : 12.18.3
node path : not found
argv : /nodejs/bin/node,/usr/src/example/.npm-global/bin/pm2,report
argv0 : node
user : undefined
uid : 0
gid : 0
===============================================================================
--- System info --------------------------------------------
arch : x64
platform : linux
type : Linux
cpus : Intel(R) Core(TM) i7-4870HQ CPU @ 2.50GHz
cpus nb : 3
freemem : 1030197248
totalmem : 2084245504
home : /usr/src/example
===============================================================================
--- PM2 list -----------------------------------------------
┌─────┬───────────┬─────────────┬─────────┬─────────┬──────────┬────────┬──────┬───────────┬──────────┬──────────┬──────────┬──────────┐
│ id │ name │ namespace │ version │ mode │ pid │ uptime │ ↺ │ status │ cpu │ mem │ user │ watching │
└─────┴───────────┴─────────────┴─────────┴─────────┴──────────┴────────┴──────┴───────────┴──────────┴──────────┴──────────┴──────────┘
===============================================================================
--- Daemon logs --------------------------------------------
/usr/src/example/.pm2/pm2.log last 20 lines:
PM2 | 2020-11-04T16:54:07: PM2 log: ===============================================================================
PM2 | 2020-11-04T16:54:07: PM2 log: --- New PM2 Daemon started ----------------------------------------------------
PM2 | 2020-11-04T16:54:07: PM2 log: Time : Wed Nov 04 2020 16:54:07 GMT+0000 (Coordinated Universal Time)
PM2 | 2020-11-04T16:54:07: PM2 log: PM2 version : 4.5.0
PM2 | 2020-11-04T16:54:07: PM2 log: Node.js version : 12.18.3
PM2 | 2020-11-04T16:54:07: PM2 log: Current arch : x64
PM2 | 2020-11-04T16:54:07: PM2 log: PM2 home : /usr/src/example/.pm2
PM2 | 2020-11-04T16:54:07: PM2 log: PM2 PID file : /usr/src/example/.pm2/pm2.pid
PM2 | 2020-11-04T16:54:07: PM2 log: RPC socket file : /usr/src/example/.pm2/rpc.sock
PM2 | 2020-11-04T16:54:07: PM2 log: BUS socket file : /usr/src/example/.pm2/pub.sock
PM2 | 2020-11-04T16:54:07: PM2 log: Application log path : /usr/src/example/.pm2/logs
PM2 | 2020-11-04T16:54:07: PM2 log: Worker Interval : 30000
PM2 | 2020-11-04T16:54:07: PM2 log: Process dump file : /usr/src/example/.pm2/dump.pm2
PM2 | 2020-11-04T16:54:07: PM2 log: Concurrent actions : 2
PM2 | 2020-11-04T16:54:07: PM2 log: SIGTERM timeout : 1600
PM2 | 2020-11-04T16:54:07: PM2 log: ===============================================================================
