I am trying to create a container with docker engine's go sdk api. I need to run a command on startup in the container, which I pass as a parameter to Client.ContainerCreate() api. I tried passing that command in different ways, but everytime found some issue. Below is the code I use:
resp, err := cli.ContainerCreate(ctx, &container.Config{
Image: "hyperledger/fabric-ca",
Cmd: []string{"/bin/sh"," fabric-ca-server start -b admin:adminpw"},
Env: []string{"FABRIC_CA_HOME=/etc/hyperledger/fabric-ca-server", "FABRIC_CA_SERVER_CA_NAME=ca.example.com"}, }, nil, nil, "ca.example.com")
if err != nil {
fmt.Println(" failed to create container, err:", err)
} else {
fmt.Println(" Container ID :", resp.ID, "warning:", resp.Warnings, "err:", err)
}
if err := cli.ContainerStart(ctx, resp.ID, types.ContainerStartOptions{}); err != nil {
fmt.Println("failed to start container, err:", err)
}
1)
If I don't provide Cmd parameter, container is created.
Container ID : 02edc80d6545ca2c8089a191ba9174070e1527dc027191e0d7686bff23a9f39d warning: [] err: <nil>
vignesh@vignesh-ThinkPad-E470 ~ $ docker container list
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
02edc80d6545 hyperledger/fabric-ca "/bin/sh -c 'fabric-…" 7 minutes ago Up 7 minutes 7054/tcp ca.example.com
2)
If I provide Cmd parameter as Cmd: []string{"/bin/sh"," fabric-ca-server start -b admin:adminpw"}, ContainerCreate() returns a container Id, but docker container list doesn't show any container and docker container inspect shows status as exited.
Container ID : c2f7bbc54e09665b0797eeaea43723f3fddf4538db8bf4327362b2535b9a088b warning: [] err: <nil>
vignesh@vignesh-ThinkPad-E470 ~ $ docker container list
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
vignesh@vignesh-ThinkPad-E470 ~ $ docker container inspect c2f7bbc54e09665b0797eeaea43723f3fddf4538db8bf4327362b2535b9a088b
[
{
"Id": "c2f7bbc54e09665b0797eeaea43723f3fddf4538db8bf4327362b2535b9a088b",
"Created": "2019-02-05T20:05:11.360875853Z",
"Path": "/bin/sh",
"Args": [
" fabric-ca-server start -b admin:adminpw"
],
"State": {
"Status": "exited",
"Running": false,
"Paused": false,
"Restarting": false,
"OOMKilled": false,
"Dead": false,
"Pid": 0,
"ExitCode": 127,
"Error": "",
"StartedAt": "2019-02-05T20:05:12.448079587Z",
"FinishedAt": "2019-02-05T20:05:12.644957269Z"
},
3) If I provide Cmd parameter as Cmd: []string{"sh -c"," fabric-ca-server start -b admin:adminpw"}, ContainerCreate() returns a container Id, but ContainerStart() gives "exec: \"sh -c\": executable file not found in $PATH" error. docker container list doesn't show any container.
Container ID : d2752eb14267ccc170121d28ea9c51f2cd99227eba3d53b4430bd4b7eeec4787 warning: [] err: <nil>
failed to start container, err: Error response from daemon: OCI runtime create failed: container_linux.go:348: starting container process caused "exec: \"sh -c\": executable file not found in $PATH": unknown
vignesh@vignesh-ThinkPad-E470 ~ $ docker container list
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
vignesh@vignesh-ThinkPad-E470 ~ $ docker container inspect d2752eb14267ccc170121d28ea9c51f2cd99227eba3d53b4430bd4b7eeec4787
[
{
"Id": "d2752eb14267ccc170121d28ea9c51f2cd99227eba3d53b4430bd4b7eeec4787",
"Created": "2019-02-06T17:02:13.989788091Z",
"Path": "sh -c",
"Args": [
" fabric-ca-server start -b admin:adminpw"
],
"State": {
"Status": "created",
"Running": false,
"Paused": false,
"Restarting": false,
"OOMKilled": false,
"Dead": false,
"Pid": 0,
"ExitCode": 127,
"Error": "OCI runtime create failed: container_linux.go:348: starting container process caused \"exec: \\\"sh -c\\\": executable file not found in $PATH\": unknown",
"StartedAt": "0001-01-01T00:00:00Z",
"FinishedAt": "0001-01-01T00:00:00Z"
},
4) If I provide Cmd parameter as Cmd: []string{"fabric-ca-server start -b admin:adminpw"}, ContainerCreate() returns a container Id, but ContainerStart() gives \"exec: \\"fabric-ca-server start -b admin:adminpw\\": executable file not found in $PATH\": unknown" error. docker container list doesn't show any container.
Container ID : d81d4b8f5ae964ec8ef805671a8e4233b41ea363ad890da0218c0ef586d7a72c warning: [] err: <nil>
failed to start container, err: Error response from daemon: OCI runtime create failed: container_linux.go:348: starting container process caused "exec: \"fabric-ca-server start -b admin:adminpw\": executable file not found in $PATH": unknown
vignesh@vignesh-ThinkPad-E470 ~ $ docker container list
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
vignesh@vignesh-ThinkPad-E470 ~ $ docker container inspect d81d4b8f5ae964ec8ef805671a8e4233b41ea363ad890da0218c0ef586d7a72c
[
{
"Id": "d81d4b8f5ae964ec8ef805671a8e4233b41ea363ad890da0218c0ef586d7a72c",
"Created": "2019-02-06T17:12:10.443261734Z",
"Path": "fabric-ca-server start -b admin:adminpw",
"Args": [],
"State": {
"Status": "created",
"Running": false,
"Paused": false,
"Restarting": false,
"OOMKilled": false,
"Dead": false,
"Pid": 0,
"ExitCode": 127,
"Error": "OCI runtime create failed: container_linux.go:348: starting container process caused \"exec: \\\"fabric-ca-server start -b admin:adminpw\\\": executable file not found in $PATH\": unknown",
"StartedAt": "0001-01-01T00:00:00Z",
"FinishedAt": "0001-01-01T00:00:00Z"
},
There is a .yaml file to create the same container via docker-compose command where sh -c 'fabric-ca-server start -b admin:adminpw' is passed as startup command and the container is created.
I am trying to create that container via go code and facing issues.
As I am not seeing any issue with the command in .yaml file, I think command is fine. I am not able to figure out what I am missing. Kindly help :)
