HI Kai Stian Olstad ,
That helped me and thanks a ton but that scenario works better if we know
the number of docker networks.
Here is the exact use case where I need to generate multiple docker network
files based on the number of container count and push a single template
multiple times to match the container count updating the correct network
details. I would get docker1ip/nm/gw docker2ip/nm/gw dockernip/nm/gw from
external source and just for testing i mentioned them as vars in this
playbook.
- name: Get number of Containers (Number of logical drives excluding the OS)
shell: echo `/sbin/hpssacli ctrl all show config | grep logical | wc -l` -1 |
bc
register: container_count
- name: Generating docker network Files
template: src=templates/docker_interface
dest=/etc/sysconfig/network-scripts/ifcfg-docker{{ item }}
vars:
ipaddress: {{ docker{{ item }}ip }}
netmask: {{ docker{{ item }}nm }}
gateway: {{ docker{{ item }}gw }}
with_sequence: start=1 end={{ container_count.stdout }} stride=1
template
DEVICE=docker{{ item }}
BONDING_OPTS="miimon=100 mode=1"
ONPARENT=yes
BOOTPROTO=static
IPADDR={{ ipaddress }}
NETMASK={{ netmask }}
GATEWAY={{ gateway }}
Can you help me with this one
On Wednesday, April 26, 2017 at 12:15:13 AM UTC-7, Kai Stian Olstad wrote:
>
> On 26.04.2017 01:19, Kiran Kumar wrote:
> > Am having a challenge finding a solution to below issue.
> > I need to generate multiple network files based on single template and
> > the
> > value of template should change based on the item like IP/NM/GW .
> >
> > Example
> >
> > vars:
> > docker1ip: 1.2.3.4
> > docker1nm: 255.255.255.1
> > docker1gw: 1.2.3.1
> > docker2ip: 1.2.3.5
> > docker2nm: 255.255.255.2
> > docker2gw: 1.2.3.1
> >
> >
> > - name: Generating docker network Files
> > template: src=templates/docker_interface
> > dest=/etc/sysconfig/network-scripts/ifcfg-docker{{ item }}
> > vars:
> > ipaddress: {{ docker{{ item }}ip }}
> > netmask: {{ docker{{ item }}nm }}
> > gateway: {{ docker{{ item }}gw }}
> > with_sequence: start=1 end=2 stride=1
>
> Variables in variables is not possible like this, you need to do it like
> this
>
> https://docs.ansible.com/ansible/faq.html#when-should-i-use-also-how-to-interpolate-variables-or-dynamic-variable-names
>
>
>
> > template
> >
> > DEVICE=docker{{ item }}
> > BONDING_OPTS="miimon=100 mode=1"
> > ONPARENT=yes
> > BOOTPROTO=static
> > IPADDR={{ ipaddress }}
> > NETMASK={{ netmask }}
> > GATEWAY={{ gateway }}
> >
> >
> > Above task doesnt work but I need a solution it may be a different
> > approach
> > too.
>
> Since you are specifying everything why not restructure the variable,
> one example on how to do it:
>
> vars:
> docker_inv:
> - host: docker1
> ip: 1.2.3.4
> nm: 255.255.255.1
> gw: 1.2.3.1
> - host: docker2
> ip: 1.2.3.5
> nm: 255.255.255.2
> gw: 1.2.3.1
>
> - name: Generating docker network Files
> template: src=templates/docker_interface
> dest=/etc/sysconfig/network-scripts/ifcfg-{{ item.host }}
> with_items: '{{ docker_inv }}'
>
> template
> --------
> DEVICE={{ item.host }}
> BONDING_OPTS="miimon=100 mode=1"
> ONPARENT=yes
> BOOTPROTO=static
> IPADDR={{ item.ip }}
> NETMASK={{ item.nm }}
> GATEWAY={{ item.gw }}
>
> --
> Kai Stian Olstad
>
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