panic: runtime error: index out of range

[luiselizondo]

I have a fig file with 3 containers, a redis container, a mongodb container and a nodejs container. With docker 0.9 everything works, buth with docker 0.11 I get an error with the web (nodejs) container:

web_1 | panic: runtime error: index out of range
web_1 | 
web_1 | goroutine 1 [running]:
web_1 | runtime.panic(0xa4d6c0, 0x1417cb7)
web_1 |     /usr/local/go/src/pkg/runtime/panic.c:266 +0xb6
web_1 | github.com/dotcloud/docker/pkg/libcontainer/nsinit.LoadContainerEnvironment(0xc2100c2e70, 0x59, 0xc210038960)
web_1 |     /go/src/github.com/dotcloud/docker/pkg/libcontainer/nsinit/init.go:155 +0x126
web_1 | github.com/dotcloud/docker/pkg/libcontainer/nsinit.Init(0xc2100c2e70, 0xc210038840, 0x59, 0x7fffd0548874, 0x0, ...)
web_1 |     /go/src/github.com/dotcloud/docker/pkg/libcontainer/nsinit/init.go:35 +0x9a
web_1 | github.com/dotcloud/docker/daemon/execdriver/native.func·001(0xc21000a240, 0xc21001ef90, 0x7fffd0548864)
web_1 |     /go/src/github.com/dotcloud/docker/daemon/execdriver/native/driver.go:49 +0x308
web_1 | github.com/dotcloud/docker/sysinit.executeProgram(0xc21000a240, 0xc21000a240, 0xadef80)
web_1 |     /go/src/github.com/dotcloud/docker/sysinit/sysinit.go:18 +0xbc
web_1 | github.com/dotcloud/docker/sysinit.SysInit()
web_1 |     /go/src/github.com/dotcloud/docker/sysinit/sysinit.go:59 +0x564
web_1 | main.main()
web_1 |     /go/src/github.com/dotcloud/docker/docker/docker.go:37 +0x67
web_1 | 
web_1 | goroutine 3 [syscall]:
web_1 | os/signal.loop()
web_1 |     /usr/local/go/src/pkg/os/signal/signal_unix.go:21 +0x1e
web_1 | created by os/signal.init·1
web_1 |     /usr/local/go/src/pkg/os/signal/signal_unix.go:27 +0x31
web_1 | 
web_1 | goroutine 4 [syscall]:
web_1 | runtime.goexit()
web_1 |     /usr/local/go/src/pkg/runtime/proc.c:1394
web_1 | 
web_1 | goroutine 6 [runnable]:
web_1 | text/template/parse.lexText(0xc210070800, 0xc0b298)
web_1 |     /usr/local/go/src/pkg/text/template/parse/lex.go:228 +0x35e
web_1 | text/template/parse.(*lexer).run(0xc210070800)
web_1 |     /usr/local/go/src/pkg/text/template/parse/lex.go:198 +0x40
web_1 | created by text/template/parse.lex
web_1 |     /usr/local/go/src/pkg/text/template/parse/lex.go:191 +0x117

Both redis and mongodb containers work as expected. If I start the container using docker everything works.

This is my fig.yml file for reference:

web:
  build: .
  links:
   - mongodb:mongodb
   - redis:redis
  ports:
   - "3000:3000"
  volumes:
   - "/var/www/dbman:/var/www"
   - "/root/.ssh/:/root/.ssh"
   - "/var/log/docker:/var/log/supervisor"
  volumes_from:
   - DBMAN_FILES
  environment:
   - MONGODB_DATABASE: dbman
   - PORT: 3000
redis:
  image: dockerfile/redis
  expose:
   - "6379:6379"
mongodb:
  image: luis/mongodb
  expose:
   - "27017"
  volumes_from: DBMAN_DBDATA

Any help will be appreciated.

[luiselizondo]

It seems like the problem is with this line:

• "/root/.ssh/:/root/.ssh"

if I remove it, everything works

[luiselizondo]

For those who have the same problem, my problem was with how I was setting the environment variables:

environment:
   - MONGODB_DATABASE: dbman
   - PORT: 3000

when it should be:

environment:
   MONGODB_DATABASE: dbman
   PORT: 3000

[aanand]

Looks like you could've done with #129! Glad you solved it in the end.

[luiselizondo]

Maybe it was just me but when I found out the problem, I realized that the syntax can be a little bit confusing because most of the time fig uses "-", but environments are an exception.

Also, this is just probably me but the example at http://orchardup.github.io/fig/yml.html can be a little hard to read because of the comments and word wrap.

[thaJeztah]

I agree with @luiselizondo here, have made the mistake with ENV myself more than once.

@aanand any chance to change the syntax for ENV (maybe some fallback for backwards compatibility)

The website could be improved by adding the 'complete' example at the bottom, without the inline comments.

[bfirsh]

Agreed: #241 #242