Unsolved Linux in the Cloud series

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Hello,

The series ends with Linux as a Docker Host and there is mention that there will be a subsequent episode with a walk through on how to spin up docker containers. I do not see anything on the Google Calendar for this subsequent episode to be recorded and wanted to ask if it is still scheduled to be added.

BTW, I like this content very much and have been taking notes for my own edification and enjoying doing so.

Thanks.

-Walter Schulze

@WalterS-NC Glad you are enjoying the content! I see two episodes on Linux as a Docker Container after the Docker Host episode. Let me know if you have any issues finding them. Enjoy!

sure enough. Must of been added after. I'm off to watch them both. Thanks!

btw, I have been fighting for the past few days with the /etc/sysconfig/docker OPTIONS directive.

Anytime I add the -H tcp://0.0.0.0:2375 and start docker, there are the below msgs in journalctl and when I try to run a docker command, I get the response "cannot connect to the Docker daemon. Is the docker daemon running on this host?".

Shutting down firewalld doesn't solve the problem.

I also tried adding the below two commands with firewalld running and it too did not solve the problem.
sudo firewall-cmd --zone=public --add-port=2375/tcp
sudo firewall-cmd --zone-public --add-port=2375/tcp --permanent

Any help would be appreciated. I have docker on a RHEL 7.4 host. Google searches have been inconclusive so far.

MSGS::
Sep 17 16:07:00 qemu-kvm.clt01 firewalld[5293]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w2 -t nat -D OUTPUT -m addrt
Sep 17 16:07:00 qemu-kvm.clt01 firewalld[5293]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w2 -t nat -D PREROUTING' fai
Sep 17 16:07:00 qemu-kvm.clt01 firewalld[5293]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w2 -t nat -D OUTPUT' failed:
Sep 17 16:07:00 qemu-kvm.clt01 firewalld[5293]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w2 -t filter -X DOCKER' fail
Sep 17 16:07:00 qemu-kvm.clt01 firewalld[5293]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w2 -t filter -X DOCKER-ISOLA
Sep 17 16:07:01 qemu-kvm.clt01 firewalld[5293]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w2 -t nat -n -L DOCKER' fail
Sep 17 16:07:01 qemu-kvm.clt01 firewalld[5293]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w2 -t filter -C DOCKER-ISOLA
Sep 17 16:07:01 qemu-kvm.clt01 firewalld[5293]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w2 -t nat -C DOCKER -i docke
Sep 17 16:07:01 qemu-kvm.clt01 firewalld[5293]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w2 -D FORWARD -i docker0 -o
Sep 17 16:07:01 qemu-kvm.clt01 firewalld[5293]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w2 -t nat -C PREROUTING -m a
Sep 17 16:07:01 qemu-kvm.clt01 firewalld[5293]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w2 -t nat -C OUTPUT -m addrt
Sep 17 16:07:01 qemu-kvm.clt01 dockerd-current[13353]: time="2017-09-17T16:07:01.297529385Z" level=info msg="Default bridg
Sep 17 16:07:01 qemu-kvm.clt01 firewalld[5293]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w2 -t nat -C POSTROUTING -s
Sep 17 16:07:01 qemu-kvm.clt01 firewalld[5293]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w2 -t nat -C DOCKER -i docke
Sep 17 16:07:01 qemu-kvm.clt01 firewalld[5293]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w2 -D FORWARD -i docker0 -o
Sep 17 16:07:01 qemu-kvm.clt01 firewalld[5293]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w2 -t filter -C FORWARD -i d
Sep 17 16:07:01 qemu-kvm.clt01 firewalld[5293]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w2 -t filter -C FORWARD -i d
Sep 17 16:07:01 qemu-kvm.clt01 firewalld[5293]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w2 -t filter -C FORWARD -o d
Sep 17 16:07:01 qemu-kvm.clt01 firewalld[5293]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w2 -t filter -C FORWARD -o d