# AWS ec2\_elb register multiple instances to and elb? **URL:** \ **Category:** Ansible Project\ **Tags:** aws\ **Created:** [March 9, 2015, 1:36pm UTC](https://forum.ansible.com/t/aws-ec2-elb-register-multiple-instances-to-and-elb/17700 "2015-03-09T13:36:39Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![Eoin\_Verling](https://avatars.discourse-cdn.com/v4/letter/e/bc8723/32.png) [@Eoin\_Verling](https://forum.ansible.com/u/Eoin_Verling)\ **Post date:** [March 9, 2015, 1:36pm UTC](https://forum.ansible.com/t/aws-ec2-elb-register-multiple-instances-to-and-elb/17700/1 "2015-03-09T13:36:39Z")
Hi, I’m trying to add instances to an ELB, I may be looking at this the wrong way. I have X number of instances, running ElasticSearch for example. I want to create an ELB, and add (register) all the instance ids, with my “elasticsearch” tag, to that ELB. Is the “ec2\_elb” module designed to “register a single instance id to a list of ELBs, at the instance creation time”, as opposed to, “register a list of instance ids, to a single ELB, at any stage”? So, what I am trying to to:- 1. create ec2 instances 2. install elasticsearch on all “tag:Name=elasticsearch” 3. create ELB 4. get list of all instance ids with “tag:Name=elasticsearch” 5. register this list with ELB - name: add instances to LB ec2\_elb: instance\_id: “{{ item }}” ec2\_elbs: “{{ my\_elb\_name }}” state: present with\_items: my\_es\_instances.stdout\_lines TASK: [elb | debug var=my\_es\_instances] \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\* ok: [localhost] =\> { “my\_es\_instances”: { “changed”: true, “cmd”: “ec2-describe-instances --hide-tags --region eu-west-1 -F ‘tag:Name=elasticsearch’ | grep INSTANCE | awk ‘{print $2}’”, “delta”: “0:00:01.477150”, “end”: “2015-03-06 17:27:25.737070”, “invocation”: { “module\_args”: “ec2-describe-instances --hide-tags --region eu-west-1 -F ‘tag:Name=elasticsearch’ | grep INSTANCE | awk ‘{print $2}’”, “module\_name”: “shell” }, “rc”: 0, “start”: “2015-03-06 17:27:24.259920”, “stderr”: “”, “stdout”: “i-123456\ni-abcdef”, “stdout\_lines”: [ “i-123456”, “i-abcdef” ], “warnings”: } } Step 5 is where I’m stuck. Am I loosing my mind? thanks e ---
**Author:** ![Vishal\_Uderani](https://avatars.discourse-cdn.com/v4/letter/v/c4cdca/32.png) [@Vishal\_Uderani](https://forum.ansible.com/u/Vishal_Uderani)\ **Post date:** [March 10, 2015, 7:18am UTC](https://forum.ansible.com/t/aws-ec2-elb-register-multiple-instances-to-and-elb/17700/2 "2015-03-10T07:18:44Z")
Im facing a similar issue where my workflow is as follows 1. deploy code to an instance 2. create an ami from the said instance 3. spawn x instances from the said AMI 4. register all newly created instances to the elb using ec2\_elb module step 4) code looks like - name: adding the new instances to the ELB ec2\_elb: aws\_access\_key: “{{ ec2\_access\_key }}” aws\_secret\_key: “{{ ec2\_secret\_key }}” region: “{{ region }}” instance\_id: “{{ new\_instance\_ids.instance\_ids }}” ec2\_elbs: ansible-test state: present wait: yes new\_instance\_ids is what i register after the instances are created and query the instance\_id field and get the below error failed: [test-ami-2] =\> {“failed”: true, “parsed”: false} SUDO-SUCCESS-fscsgqdhhmhsmegnguzilbdrrlylbpbk Traceback (most recent call last): File “/home/ec2-user/.ansible/tmp/ansible-tmp-1425971748.07-61887153074694/ec2\_elb”, line 2126, in main() File “/home/ec2-user/.ansible/tmp/ansible-tmp-1425971748.07-61887153074694/ec2\_elb”, line 326, in main elb\_man.register(wait, enable\_availability\_zone, timeout) File “/home/ec2-user/.ansible/tmp/ansible-tmp-1425971748.07-61887153074694/ec2\_elb”, line 154, in register self.\_enable\_availailability\_zone(lb) File “/home/ec2-user/.ansible/tmp/ansible-tmp-1425971748.07-61887153074694/ec2\_elb”, line 179, in \_enable\_availailability\_zone instance = self.\_get\_instance() File “/home/ec2-user/.ansible/tmp/ansible-tmp-1425971748.07-61887153074694/ec2\_elb”, line 283, in \_get\_instance return ec2.get\_only\_instances(instance\_ids=[self.instance\_id])[0] AttributeError: ‘EC2Connection’ object has no attribute ‘get\_only\_instances’ ---
**Author:** ![Vishal\_Uderani](https://avatars.discourse-cdn.com/v4/letter/v/c4cdca/32.png) [@Vishal\_Uderani](https://forum.ansible.com/u/Vishal_Uderani)\ **Post date:** [March 11, 2015, 6:20am UTC](https://forum.ansible.com/t/aws-ec2-elb-register-multiple-instances-to-and-elb/17700/3 "2015-03-11T06:20:16Z")
nevermind i figured my ec2\_elb problem was though . the instance\_ids need to be passed in via complex args , since they are an array and the standard key=value argument method would not work here . To workaround this , I passed the ids through the jinja2 join filter instance\_id: ‘{{ new\_instances.instance\_ids|join(“,”) }}’ This will turn the argument into instance\_ids=id1,id2,id3, and the parameter parsing in the module will know to turn it back into a list based on the fact that it is set to type=‘list’. Eion : You should try and do this to fix your problem ---
**Author:** ![Vishal\_Uderani](https://avatars.discourse-cdn.com/v4/letter/v/c4cdca/32.png) [@Vishal\_Uderani](https://forum.ansible.com/u/Vishal_Uderani)\ **Post date:** [March 11, 2015, 8:24am UTC](https://forum.ansible.com/t/aws-ec2-elb-register-multiple-instances-to-and-elb/17700/4 "2015-03-11T08:24:56Z")
Update: This only works when you have value from instance\_ids . Having multiple id’s creates a malformed string “i-xxxxx,i-xxxx” while it should look like “i-4f8cf126’, 'i-0bb7ca62” How can this be fixed ? Any help would be appreciated ---
**Author:** ![Eoin\_Verling](https://avatars.discourse-cdn.com/v4/letter/e/bc8723/32.png) [@Eoin\_Verling](https://forum.ansible.com/u/Eoin_Verling)\ **Post date:** [March 12, 2015, 3:14pm UTC](https://forum.ansible.com/t/aws-ec2-elb-register-multiple-instances-to-and-elb/17700/5 "2015-03-12T15:14:59Z")
Thanks Vishal, getting closer, thanks for the help … I think I’m simply in “YAML wonderland”, I’m almost at the strategy of “pressing every button” to see what works!! 🙂 So, for me … this will work ` - name: add instances to LB ec2\_elb: instance\_id: “{{ item }}” ec2\_elbs: “{{ my\_name }}” state: present with\_items: - “{{ my\_es\_instances.stdout\_lines[0] }}” - “{{ my\_es\_instances.stdout\_lines[1] }}” ` so, what I want is to be able to create a list … from (what I thought was already a list!) a variable, without referencing each item [0], [1], etc … where “my\_es\_instances” is:- ` TASK: [elb | debug var=my\_es\_instances] \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\* ok: [localhost] =\> { “my\_es\_instances”: { “changed”: true, “cmd”: “ec2-describe-instances --hide-tags --region eu-west-1 -F ‘tag:Name=elasticsearch’ | grep INSTANCE | awk ‘{print $2}’”, “delta”: “0:00:01.525650”, “end”: “2015-03-12 15:10:27.021719”, “invocation”: { “module\_args”: “ec2-describe-instances --hide-tags --region eu-west-1 -F ‘tag:Name=elasticsearch’ | grep INSTANCE | awk ‘{print $2}’”, “module\_name”: “shell” }, “rc”: 0, “start”: “2015-03-12 15:10:25.496069”, “stderr”: “”, “stdout”: “i-fca5221b\ni-8ae76a6d”, “stdout\_lines”: [ “i-fca5221b”, “i-8ae76a6d” ], “warnings”: } } ` thanks e