Docker Plugin Permission denied

Hi @all,

I try to setup the docker plugin on foreman but didn't get it up and
running so far. I have two CentOS 7 boxes, one running foreman and one
running docker. I've modified the docker sysconfig file to start docker
with the remote API:

thbe@docker1.domain.local ~$ curl -XGET http://localhost:4243/version

{"Version":"1.10.3","ApiVersion":"1.22","GitCommit":"d381c64-unsupported","GoVersion":"go1.6.3","Os":"linux","Arch":"amd64","KernelVersion":"3.10.0-327.28.2.el7.x86_64","BuildTime":"2016-08-04T13:21:17.566257784+00:00","PkgVersion":"docker-common-1.10.3-46.el7.centos.10.x86_64"}

thbe@docker1.domain.local ~$

[…]

thbe@manage1.domain.local ~$ curl -XGET
http://docker1.domain.local:4243/version

{"Version":"1.10.3","ApiVersion":"1.22","GitCommit":"d381c64-unsupported","GoVersion":"go1.6.3","Os":"linux","Arch":"amd64","KernelVersion":"3.10.0-327.28.2.el7.x86_64","BuildTime":"2016-08-04T13:21:17.566257784+00:00","PkgVersion":"docker-common-1.10.3-46.el7.centos.10.x86_64"}

thbe@manage1.domain.local ~$

It work from the docker host and the foreman host, so far so good. Checking
if additional operations work looks also good:

thbe@manage1.domain.local ~$ curl -XPOST
http://docker1.domain.local:4243/images/create?fromImage=centos:7

{"status":"Trying to pull repository docker.io/library/centos … "}

{"status":"Pulling from docker.io/library/centos","id":"7"}

{"status":"Pulling fs layer","progressDetail":{},"id":"8d30e94188e7"}

{"status":"Downloading","progressDetail":{"current":526329,"total":70591526},"progress":"[\u003e
] 526.3 kB/70.59
MB","id":"8d30e94188e7"}

[…]

{"status":"Extracting","progressDetail":{"current":70591526,"total":70591526},"progress":"[==================================================\u003e]
70.59 MB/70.59 MB","id":"8d30e94188e7"}

{"status":"Pull complete","progressDetail":{},"id":"8d30e94188e7"}

{"status":"Pull complete","progressDetail":{},"id":"8d30e94188e7"}

{"status":"Digest:
sha256:2ae0d2c881c7123870114fb9cc7afabd1e31f9888dac8286884f6cf59373ed9b"}

{"status":"Status: Downloaded newer image for docker.io/centos:7"}

thbe@manage1.domain.local ~$

But when I create the compute resource in foreman (without
user/password/email), I get:

Permission denied - connect(2) for 192.168.XXX.XXX:4243 (Errno::EACCES)

​If I use my Docker Hub credentials for user/password/email, I got the same
error:

Permission denied - connect(2) for 192.168.XXX.XXX:4243 (Errno::EACCES)

Anyone any idea how can fix this?​

​Regards Thomas​

··· -- Linux ... enjoy the ride!

Hello,
it might be a SELinux issue. Could you check /var/log/audit/audit.log for
lines containing the port number? If it is a SELinux issue you should see
something like this there

type=AVC msg=audit(1473324981.209:1007): avc: denied { name_connect } for
pid=4380 comm="diagnostic_con*" dest=4243
scontext=system_u:system_r:passenger_t:s0
tcontext=system_u:object_r:unreserved_port_t:s0 tclass=tcp_socket

Adam

··· On Thu, Sep 8, 2016 at 10:43 AM, Thomas Bendler wrote:

Hi @all,

I try to setup the docker plugin on foreman but didn’t get it up and
running so far. I have two CentOS 7 boxes, one running foreman and one
running docker. I’ve modified the docker sysconfig file to start docker
with the remote API:

thbe@docker1.domain.local ~$ curl -XGET http://localhost:4243/version

{“Version”:“1.10.3”,“ApiVersion”:“1.22”,“GitCommit”
:“d381c64-unsupported”,“GoVersion”:“go1.6.3”,“Os”:“linux”,“Arch”:“amd64”,“
KernelVersion”:“3.10.0-327.28.2.el7.x86_64”,“BuildTime”:“
2016-08-04T13:21:17.566257784+00:00”,“PkgVersion”:“docker-
common-1.10.3-46.el7.centos.10.x86_64”}

thbe@docker1.domain.local ~$

[…]

thbe@manage1.domain.local ~$ curl -XGET http://docker1.domain.local:
4243/version

{“Version”:“1.10.3”,“ApiVersion”:“1.22”,“GitCommit”
:“d381c64-unsupported”,“GoVersion”:“go1.6.3”,“Os”:“linux”,“Arch”:“amd64”,“
KernelVersion”:“3.10.0-327.28.2.el7.x86_64”,“BuildTime”:“
2016-08-04T13:21:17.566257784+00:00”,“PkgVersion”:“docker-
common-1.10.3-46.el7.centos.10.x86_64”}

thbe@manage1.domain.local ~$

It work from the docker host and the foreman host, so far so good.
Checking if additional operations work looks also good:

thbe@manage1.domain.local ~$ curl -XPOST http://docker1.domain.local:
4243/images/create?fromImage=centos:7

{“status”:"Trying to pull repository docker.io/library/centos … "}

{“status”:“Pulling from docker.io/library/centos",“id”:"7”}

{“status”:“Pulling fs layer”,“progressDetail”:{},“id”:“8d30e94188e7”}

{“status”:“Downloading”,“progressDetail”:{“current”:
526329,“total”:70591526},“progress”:"[\u003e
] 526.3 kB/70.59 MB",“id”:“8d30e94188e7”}

[…]

{“status”:“Extracting”,“progressDetail”:{“current”:
70591526,“total”:70591526},“progress”:"[==================
================================\u003e] 70.59 MB/70.59
MB",“id”:“8d30e94188e7”}

{“status”:“Pull complete”,“progressDetail”:{},“id”:“8d30e94188e7”}

{“status”:“Pull complete”,“progressDetail”:{},“id”:“8d30e94188e7”}

{“status”:“Digest: sha256:2ae0d2c881c7123870114fb9cc7afa
bd1e31f9888dac8286884f6cf59373ed9b”}

{“status”:“Status: Downloaded newer image for docker.io/centos:7”}

thbe@manage1.domain.local ~$

But when I create the compute resource in foreman (without
user/password/email), I get:

Permission denied - connect(2) for 192.168.XXX.XXX:4243 (Errno::EACCES)

​If I use my Docker Hub credentials for user/password/email, I got the
same error:

Permission denied - connect(2) for 192.168.XXX.XXX:4243 (Errno::EACCES)

Anyone any idea how can fix this?​

​Regards Thomas​

Linux … enjoy the ride!

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1 Like

I just had this issue on my install. I had to add foreman and
foreman-proxy to the docker group in /etc/group and restart apache2 and the
foreman services.

··· On Thursday, September 8, 2016 at 4:44:03 AM UTC-4, thbe wrote: > > > But when I create the compute resource in foreman (without > user/password/email), I get: > > Permission denied - connect(2) for 192.168.XXX.XXX:4243 (Errno::EACCES) > > ​If I use my Docker Hub credentials for user/password/email, I got the > same error: > > Permission denied - connect(2) for 192.168.XXX.XXX:4243 (Errno::EACCES) > > >

Hi Adam,

thanks a lot, this was indeed the problem. Set selinux to permissive solved
the problem.

Regards Thomas

··· 2016-09-08 11:07 GMT+02:00 Adam Ruzicka :

Hello,
it might be a SELinux issue. Could you check /var/log/audit/audit.log for
lines containing the port number? If it is a SELinux issue you should see
something like this there

type=AVC msg=audit(1473324981.209:1007): avc: denied { name_connect }
for pid=4380 comm=“diagnostic_con*” dest=4243 scontext=system_u:system_r:passenger_t:s0
tcontext=system_u:object_r:unreserved_port_t:s0 tclass=tcp_socket

Adam

On Thu, Sep 8, 2016 at 10:43 AM, Thomas Bendler thomas.bendler@gmail.com > wrote:

Hi @all,

I try to setup the docker plugin on foreman but didn’t get it up and
running so far. I have two CentOS 7 boxes, one running foreman and one
running docker. I’ve modified the docker sysconfig file to start docker
with the remote API:

thbe@docker1.domain.local ~$ curl -XGET http://localhost:4243/version

{“Version”:“1.10.3”,“ApiVersion”:“1.22”,“GitCommit”:“
d381c64-unsupported”,“GoVersion”:“go1.6.3”,“Os”:“linux”,“
Arch”:“amd64”,“KernelVersion”:“3.10.0-327.28.2.el7.x86_64”,“
BuildTime”:“2016-08-04T13:21:17.566257784+00:00”,“
PkgVersion”:“docker-common-1.10.3-46.el7.centos.10.x86_64”}

thbe@docker1.domain.local ~$

[…]

thbe@manage1.domain.local ~$ curl -XGET http://docker1.domain.local:42
43/version

{“Version”:“1.10.3”,“ApiVersion”:“1.22”,“GitCommit”:“
d381c64-unsupported”,“GoVersion”:“go1.6.3”,“Os”:“linux”,“
Arch”:“amd64”,“KernelVersion”:“3.10.0-327.28.2.el7.x86_64”,“
BuildTime”:“2016-08-04T13:21:17.566257784+00:00”,“
PkgVersion”:“docker-common-1.10.3-46.el7.centos.10.x86_64”}

thbe@manage1.domain.local ~$

It work from the docker host and the foreman host, so far so good.
Checking if additional operations work looks also good:

thbe@manage1.domain.local ~$ curl -XPOST http://docker1.domain.local:42
43/images/create?fromImage=centos:7

{“status”:"Trying to pull repository docker.io/library/centos … "}

{“status”:“Pulling from docker.io/library/centos",“id”:"7”}

{“status”:“Pulling fs layer”,“progressDetail”:{},“id”:“8d30e94188e7”}

{“status”:“Downloading”,“progressDetail”:{“current”:526329,“
total”:70591526},“progress”:"[\u003e
] 526.3 kB/70.59 MB",“id”:“8d30e94188e7”}

[…]

{“status”:“Extracting”,“progressDetail”:{“current”:70591526,
“total”:70591526},“progress”:"[==================================================\u003e]
70.59 MB/70.59 MB",“id”:“8d30e94188e7”}

{“status”:“Pull complete”,“progressDetail”:{},“id”:“8d30e94188e7”}

{“status”:“Pull complete”,“progressDetail”:{},“id”:“8d30e94188e7”}

{“status”:“Digest: sha256:2ae0d2c881c7123870114fb
9cc7afabd1e31f9888dac8286884f6cf59373ed9b”}

{“status”:“Status: Downloaded newer image for docker.io/centos:7”}

thbe@manage1.domain.local ~$

But when I create the compute resource in foreman (without
user/password/email), I get:

Permission denied - connect(2) for 192.168.XXX.XXX:4243 (Errno::EACCES)

​If I use my Docker Hub credentials for user/password/email, I got the
same error:

Permission denied - connect(2) for 192.168.XXX.XXX:4243 (Errno::EACCES)

Anyone any idea how can fix this?​

​Regards Thomas​

Linux … enjoy the ride!

–
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–
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Hello,
adding foreman and foreman-proxy users to the docker group helped only when
connecting to the docker socket, right?

Adam

··· On Thu, Sep 8, 2016 at 11:29 PM, Chris Kaminski wrote:

On Thursday, September 8, 2016 at 4:44:03 AM UTC-4, thbe wrote:

But when I create the compute resource in foreman (without
user/password/email), I get:

Permission denied - connect(2) for 192.168.XXX.XXX:4243 (Errno::EACCES)

​If I use my Docker Hub credentials for user/password/email, I got the
same error:

Permission denied - connect(2) for 192.168.XXX.XXX:4243 (Errno::EACCES)

I just had this issue on my install. I had to add foreman and
foreman-proxy to the docker group in /etc/group and restart apache2 and the
foreman services.

–
You received this message because you are subscribed to the Google Groups
"Foreman users" group.
To unsubscribe from this group and stop receiving emails from it, send an
email to foreman-users+unsubscribe@googlegroups.com.
To post to this group, send email to foreman-users@googlegroups.com.
Visit this group at https://groups.google.com/group/foreman-users.
For more options, visit https://groups.google.com/d/optout.

Hi,

Set selinux to permissive solved the problem.

Disabling SELinux solves the issue, however there are more sophisticated
ways of dealing with this. The root cause is SELinux not allowing the web
server process to open outgoing connections to ports not marked as
http_port_t. If you don't care about SELinux at all and you're ok with
having it set to permissive, feel free to stop reading here.

You could either allow it to open outgoing connections anywhere by setting
a SELinux bool
setsebool -P httpd_can_network_connect 1

Or by marking the docker port as http_port_t
semanage port -a -t http_port_t -p tcp $DOCKER_PORT

Adam

··· On Thu, Sep 8, 2016 at 5:54 PM, Thomas Bendler wrote:

Hi Adam,

thanks a lot, this was indeed the problem. Set selinux to permissive
solved the problem.

Regards Thomas

2016-09-08 11:07 GMT+02:00 Adam Ruzicka aruzicka@redhat.com:

Hello,
it might be a SELinux issue. Could you check /var/log/audit/audit.log for
lines containing the port number? If it is a SELinux issue you should see
something like this there

type=AVC msg=audit(1473324981.209:1007): avc: denied { name_connect }
for pid=4380 comm=“diagnostic_con*” dest=4243
scontext=system_u:system_r:passenger_t:s0 tcontext=system_u:object_r:unreserved_port_t:s0
tclass=tcp_socket

Adam

On Thu, Sep 8, 2016 at 10:43 AM, Thomas Bendler <thomas.bendler@gmail.com >> > wrote:

Hi @all,

I try to setup the docker plugin on foreman but didn’t get it up and
running so far. I have two CentOS 7 boxes, one running foreman and one
running docker. I’ve modified the docker sysconfig file to start docker
with the remote API:

thbe@docker1.domain.local ~$ curl -XGET http://localhost:4243/version

{“Version”:“1.10.3”,“ApiVersion”:“1.22”,“GitCommit”:“d381c64
-unsupported”,“GoVersion”:“go1.6.3”,“Os”:“linux”,“Arch”:“amd
64”,“KernelVersion”:“3.10.0-327.28.2.el7.x86_64”,“BuildTim
e”:“2016-08-04T13:21:17.566257784+00:00”,“PkgVersion”:“
docker-common-1.10.3-46.el7.centos.10.x86_64”}

thbe@docker1.domain.local ~$

[…]

thbe@manage1.domain.local ~$ curl -XGET http://docker1.domain.local:42
43/version

{“Version”:“1.10.3”,“ApiVersion”:“1.22”,“GitCommit”:“d381c64
-unsupported”,“GoVersion”:“go1.6.3”,“Os”:“linux”,“Arch”:“amd
64”,“KernelVersion”:“3.10.0-327.28.2.el7.x86_64”,“BuildTim
e”:“2016-08-04T13:21:17.566257784+00:00”,“PkgVersion”:“
docker-common-1.10.3-46.el7.centos.10.x86_64”}

thbe@manage1.domain.local ~$

It work from the docker host and the foreman host, so far so good.
Checking if additional operations work looks also good:

thbe@manage1.domain.local ~$ curl -XPOST http://docker1.domain.local:42
43/images/create?fromImage=centos:7

{“status”:"Trying to pull repository docker.io/library/centos … "}

{“status”:“Pulling from docker.io/library/centos",“id”:"7”}

{“status”:“Pulling fs layer”,“progressDetail”:{},“id”:“8d30e94188e7”}

{“status”:“Downloading”,“progressDetail”:{“current”:526329,“
total”:70591526},“progress”:"[\u003e
] 526.3 kB/70.59 MB",“id”:“8d30e94188e7”}

[…]

{“status”:“Extracting”,“progressDetail”:{“current”:70591526,
“total”:70591526},“progress”:"[==================================================\u003e]
70.59 MB/70.59 MB",“id”:“8d30e94188e7”}

{“status”:“Pull complete”,“progressDetail”:{},“id”:“8d30e94188e7”}

{“status”:“Pull complete”,“progressDetail”:{},“id”:“8d30e94188e7”}

{“status”:“Digest: sha256:2ae0d2c881c7123870114fb
9cc7afabd1e31f9888dac8286884f6cf59373ed9b”}

{“status”:“Status: Downloaded newer image for docker.io/centos:7”}

thbe@manage1.domain.local ~$

But when I create the compute resource in foreman (without
user/password/email), I get:

Permission denied - connect(2) for 192.168.XXX.XXX:4243 (Errno::EACCES)

​If I use my Docker Hub credentials for user/password/email, I got the
same error:

Permission denied - connect(2) for 192.168.XXX.XXX:4243 (Errno::EACCES)

Anyone any idea how can fix this?​

​Regards Thomas​

Linux … enjoy the ride!

–
You received this message because you are subscribed to the Google
Groups “Foreman users” group.
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–
Linux … enjoy the ride!

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1 Like

Hi Adam,

thanks for the hint, I'll try this as well.

Regards Thomas

··· 2016-09-12 9:12 GMT+02:00 Adam Ruzicka :

Hi,

Set selinux to permissive solved the problem.

Disabling SELinux solves the issue, however there are more sophisticated
ways of dealing with this. The root cause is SELinux not allowing the web
server process to open outgoing connections to ports not marked as
http_port_t. If you don’t care about SELinux at all and you’re ok with
having it set to permissive, feel free to stop reading here.

You could either allow it to open outgoing connections anywhere by setting
a SELinux bool
setsebool -P httpd_can_network_connect 1

Or by marking the docker port as http_port_t
semanage port -a -t http_port_t -p tcp $DOCKER_PORT

Adam

On Thu, Sep 8, 2016 at 5:54 PM, Thomas Bendler thomas.bendler@gmail.com > wrote:

Hi Adam,

thanks a lot, this was indeed the problem. Set selinux to permissive
solved the problem.

Regards Thomas

2016-09-08 11:07 GMT+02:00 Adam Ruzicka aruzicka@redhat.com:

Hello,
it might be a SELinux issue. Could you check /var/log/audit/audit.log
for lines containing the port number? If it is a SELinux issue you should
see something like this there

type=AVC msg=audit(1473324981.209:1007): avc: denied { name_connect }
for pid=4380 comm=“diagnostic_con*” dest=4243
scontext=system_u:system_r:passenger_t:s0 tcontext=system_u:object_r:unreserved_port_t:s0
tclass=tcp_socket

Adam

On Thu, Sep 8, 2016 at 10:43 AM, Thomas Bendler < >>> thomas.bendler@gmail.com> wrote:

Hi @all,

I try to setup the docker plugin on foreman but didn’t get it up and
running so far. I have two CentOS 7 boxes, one running foreman and one
running docker. I’ve modified the docker sysconfig file to start docker
with the remote API:

thbe@docker1.domain.local ~$ curl -XGET http://localhost:4243/version

{“Version”:“1.10.3”,“ApiVersion”:“1.22”,“GitCommit”:“d381c64
-unsupported”,“GoVersion”:“go1.6.3”,“Os”:“linux”,“Arch”:“amd
64”,“KernelVersion”:“3.10.0-327.28.2.el7.x86_64”,“BuildTime”
:“2016-08-04T13:21:17.566257784+00:00”,“PkgVersion”:“docker-
common-1.10.3-46.el7.centos.10.x86_64”}

thbe@docker1.domain.local ~$

[…]

thbe@manage1.domain.local ~$ curl -XGET http://docker1.domain.local:42
43/version

{“Version”:“1.10.3”,“ApiVersion”:“1.22”,“GitCommit”:“d381c64
-unsupported”,“GoVersion”:“go1.6.3”,“Os”:“linux”,“Arch”:“amd
64”,“KernelVersion”:“3.10.0-327.28.2.el7.x86_64”,“BuildTime”
:“2016-08-04T13:21:17.566257784+00:00”,“PkgVersion”:“docker-
common-1.10.3-46.el7.centos.10.x86_64”}

thbe@manage1.domain.local ~$

It work from the docker host and the foreman host, so far so good.
Checking if additional operations work looks also good:

thbe@manage1.domain.local ~$ curl -XPOST http://docker1.domain.local:42
43/images/create?fromImage=centos:7

{“status”:"Trying to pull repository docker.io/library/centos … "}

{“status”:“Pulling from docker.io/library/centos",“id”:"7”}

{“status”:“Pulling fs layer”,“progressDetail”:{},“id”:“8d30e94188e7”}

{“status”:“Downloading”,“progressDetail”:{“current”:526329,“
total”:70591526},“progress”:"[\u003e
] 526.3 kB/70.59 MB",“id”:“8d30e94188e7”}

[…]

{“status”:“Extracting”,“progressDetail”:{“current”:70591526,
“total”:70591526},“progress”:"[==================================================\u003e]
70.59 MB/70.59 MB",“id”:“8d30e94188e7”}

{“status”:“Pull complete”,“progressDetail”:{},“id”:“8d30e94188e7”}

{“status”:“Pull complete”,“progressDetail”:{},“id”:“8d30e94188e7”}

{“status”:“Digest: sha256:2ae0d2c881c7123870114fb
9cc7afabd1e31f9888dac8286884f6cf59373ed9b”}

{“status”:“Status: Downloaded newer image for docker.io/centos:7”}

thbe@manage1.domain.local ~$

But when I create the compute resource in foreman (without
user/password/email), I get:

Permission denied - connect(2) for 192.168.XXX.XXX:4243 (Errno::EACCES)

​If I use my Docker Hub credentials for user/password/email, I got the
same error:

Permission denied - connect(2) for 192.168.XXX.XXX:4243 (Errno::EACCES)

Anyone any idea how can fix this?​

​Regards Thomas​

Linux … enjoy the ride!

–
You received this message because you are subscribed to the Google
Groups “Foreman users” group.
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Linux … enjoy the ride!