`ecs-cli ps` throws "panic: runtime error: invalid memory address or nil pointer dereference" about amazon-ecs-cli

[jeremymills]

getting the same issue, happens right after I do a ecs-cli compose up and then ecs-cli ps, is there even any temporary fix in the meantime? I can't get any commands to work.

[jeremymills]

"Temporary fix" is to ssh into the instance and remove all stopped docker containers and restart ecs, this got it working again for me

[bbakersmith]

Seeing this as well.

[klindklind]

I also have this problem with the latest ecs-cli 0.3.0.

When I was running ECS on the same account I'm logging in with ecs-cli I had no problem calling ecs-cli commands. But when I'm assuming cross-account role using --profile argument with ecs-cli configure command and trying to run ecs-cli commands I get:

$ ecs-cli ps
panic: runtime error: invalid memory address or nil pointer dereference
[signal 0xb code=0x1 addr=0x0 pc=0x384050]

goroutine 1 [running]:
panic(0x66ca40, 0xc8200100e0)
    /usr/local/Cellar/go/1.6.2/libexec/src/runtime/panic.go:481 +0x3e6
github.com/aws/aws-sdk-go/aws/ec2metadata.(*EC2Metadata).GetMetadata(0x0, 0x8176a0, 0x19, 0x0, 0x0, 0x0, 0x0)
    /private/tmp/amazon-ecs-cli-20160519-4261-1vszurp/amazon-ecs-cli-0.3.0/src/github.com/aws/amazon-ecs-cli/ecs-cli/vendor/src/github.com/aws/aws-sdk-go/aws/ec2metadata/api.go:24 +0x1b0
github.com/aws/aws-sdk-go/aws/credentials/ec2rolecreds.requestCredList(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
    /private/tmp/amazon-ecs-cli-20160519-4261-1vszurp/amazon-ecs-cli-0.3.0/src/github.com/aws/amazon-ecs-cli/ecs-cli/vendor/src/github.com/aws/aws-sdk-go/aws/credentials/ec2rolecreds/ec2_role_provider.go:133 +0x74
github.com/aws/aws-sdk-go/aws/credentials/ec2rolecreds.(*EC2RoleProvider).Retrieve(0xc8200f2480, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...)
    /private/tmp/amazon-ecs-cli-20160519-4261-1vszurp/amazon-ecs-cli-0.3.0/src/github.com/aws/amazon-ecs-cli/ecs-cli/vendor/src/github.com/aws/aws-sdk-go/aws/credentials/ec2rolecreds/ec2_role_provider.go:89 +0x8b
github.com/aws/aws-sdk-go/aws/credentials.(*ChainProvider).Retrieve(0xc8200f24b0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...)
    /private/tmp/amazon-ecs-cli-20160519-4261-1vszurp/amazon-ecs-cli-0.3.0/src/github.com/aws/amazon-ecs-cli/ecs-cli/vendor/src/github.com/aws/aws-sdk-go/aws/credentials/chain_provider.go:75 +0x122
github.com/aws/aws-sdk-go/aws/credentials.(*Credentials).Get(0xc82005a6c0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...)
    /private/tmp/amazon-ecs-cli-20160519-4261-1vszurp/amazon-ecs-cli-0.3.0/src/github.com/aws/amazon-ecs-cli/ecs-cli/vendor/src/github.com/aws/aws-sdk-go/aws/credentials/credentials.go:185 +0x121
github.com/aws/amazon-ecs-cli/ecs-cli/modules/config.(*CliConfig).ToServiceConfig(0xc82002c0a8, 0x788f70, 0x0, 0x0)
    /private/tmp/amazon-ecs-cli-20160519-4261-1vszurp/amazon-ecs-cli-0.3.0/src/github.com/aws/amazon-ecs-cli/ecs-cli/modules/config/config.go:68 +0x8a7
github.com/aws/amazon-ecs-cli/ecs-cli/modules/config.NewCliParams(0xc8201000f0, 0xd04be0, 0xc8200116d0, 0xd04be0, 0x0, 0x0)
    /private/tmp/amazon-ecs-cli-20160519-4261-1vszurp/amazon-ecs-cli-0.3.0/src/github.com/aws/amazon-ecs-cli/ecs-cli/modules/config/params.go:63 +0x3b7
github.com/aws/amazon-ecs-cli/ecs-cli/modules/command.glob.func1(0xc8201000f0, 0xd04be0, 0xc8200116d0, 0x10, 0x0, 0x0)
    /private/tmp/amazon-ecs-cli-20160519-4261-1vszurp/amazon-ecs-cli-0.3.0/src/github.com/aws/amazon-ecs-cli/ecs-cli/modules/command/cluster_app.go:174 +0x41
github.com/aws/amazon-ecs-cli/ecs-cli/modules/command.clusterPS(0xc8201000f0, 0xd04be0, 0xc8200116d0, 0xd04b30, 0xc8200b9b40, 0x0, 0x0, 0x0, 0x0, 0x0)
    /private/tmp/amazon-ecs-cli-20160519-4261-1vszurp/amazon-ecs-cli-0.3.0/src/github.com/aws/amazon-ecs-cli/ecs-cli/modules/command/cluster_app.go:265 +0x7d
github.com/aws/amazon-ecs-cli/ecs-cli/modules/command.ClusterPS(0xc8201000f0)
    /private/tmp/amazon-ecs-cli-20160519-4261-1vszurp/amazon-ecs-cli-0.3.0/src/github.com/aws/amazon-ecs-cli/ecs-cli/modules/command/cluster_app.go:104 +0x2ac
github.com/codegangsta/cli.Command.Run(0x788bf8, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x87e740, 0x37, 0x0, ...)
    /private/tmp/amazon-ecs-cli-20160519-4261-1vszurp/amazon-ecs-cli-0.3.0/src/github.com/aws/amazon-ecs-cli/ecs-cli/vendor/src/github.com/codegangsta/cli/command.go:127 +0x1055
github.com/codegangsta/cli.(*App).Run(0xc8200ba300, 0xc82000a200, 0x2, 0x2, 0x0, 0x0)
    /private/tmp/amazon-ecs-cli-20160519-4261-1vszurp/amazon-ecs-cli-0.3.0/src/github.com/aws/amazon-ecs-cli/ecs-cli/vendor/src/github.com/codegangsta/cli/app.go:159 +0xc34
main.main()
    /private/tmp/amazon-ecs-cli-20160519-4261-1vszurp/amazon-ecs-cli-0.3.0/src/github.com/aws/amazon-ecs-cli/ecs-cli/main.go:45 +0xa50

[w4-sglim]

I also have the same problem.

panic: runtime error: invalid memory address or nil pointer dereference
[signal 0xb code=0x1 addr=0xe0 pc=0xc4f6b]

goroutine 1 [running]:
github.com/aws/amazon-ecs-cli/ecs-cli/modules/compose/ecs.getContainersForTasks(0xb28648, 0xc20800bdd0, 0xc208315260, 0x2, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0)
/usr/src/app/src/github.com/aws/amazon-ecs-cli/ecs-cli/modules/compose/ecs/entity.go:195 +0x4db
...

There are two cases that I found to reproduce this.

Precondition: A program in docker needs memory almost the memory limitation in runtime.

1. Run 'ecs-cli compose ps' just after 'ecs-cli compose up' (Almost everytime)
2. Run 'ecs-cli compose ps' after running process consuming enough memory (Not sure..?)

[w4-sglim]

I solved the problem to change instance and memory limitation from docker compose. Lack of memory may cause the memory corruption.

[klindklind]

I get this problem every time I'm trying execute docker ps using assumed profile. But when I use my default AWS account there is no problem.

For instance configure ecs-cli to use some non-existing cluster and run ecs-cli ps. If you're not using cross-account profile you'll get valid error message complaining about missing cluster:

$ ecs-cli ps
ERRO[0000] Error executing 'ps Cluster 'not-existing-cluster' is not active. Ensure that it exists

But if you use profile like my "cross-account-ecs-admin" profile defined in ~/.aws/config:
[default]
output = json
region = eu-west-1

[profile cross-account-ecs-admin]
role_arn = arn:aws:iam::xxxxxxxxx:role/ECSAdmin
source_profile = default

You'll end up with that panic: runtime error: invalid memory address or nil pointer dereference