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<p class="MsoNormal">Hi,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I have 3 Heat templates using ResourceGroup. There are 2 resource groups(rg_a and rg_b) and rg_b depends on rg_a. and rg_b requires the IP address of rg_a as the paremeter of rg_b. I use “rg_a_public_ip: {get_attr: [rg_a, rg_a_public_ip]}”
to get the IP address of rg_a both in the section of rg_b parameters (rg_b/properties/resource_def/properties) and the section of outputs.<o:p></o:p></p>
<p class="MsoNormal">As per my observation, rg_a_public_ip shows “null” in the parameter section of rg_b. while rg_a_public_ip shows the correct IP address in the outputs section of the yaml file.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">My questions are:<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="mso-list:Ignore">1)<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>Does this behavior is expected as designed or this is a bug?<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="mso-list:Ignore">2)<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>What is the alternative solution for the above case(user want to get the run-time information of the instance when creating the second resource group) if this behavior is expected?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">------- a.yaml -------------------<o:p></o:p></p>
<p class="MsoNormal">resources: <o:p></o:p></p>
<p class="MsoNormal" style="margin-left:9.0pt">rg_a:<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:9.0pt;text-indent:4.5pt"> type: OS::Heat::ResourceGroup<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:9.0pt;text-indent:4.5pt"> properties:<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:9.0pt;text-indent:4.5pt"> count: 1<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:9.0pt;text-indent:4.5pt"> resource_def:<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:9.0pt;text-indent:4.5pt"> type: b.yaml<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:9.0pt;text-indent:4.5pt"> properties:<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:9.0pt;text-indent:4.5pt"> …<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:9.0pt"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-left:9.0pt">rg_b:<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:9.0pt;text-indent:9.0pt">type: OS::Heat::ResourceGroup<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:9.0pt;text-indent:9.0pt">depends_on:<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:9.0pt"> -rg_a<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:9.0pt;text-indent:9.0pt">properties:<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:9.0pt;text-indent:9.0pt"> count: 2<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:9.0pt;text-indent:9.0pt"> resource_def:
<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:9.0pt;text-indent:9.0pt"> type: c.yaml<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:9.0pt;text-indent:9.0pt"> properties:<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:9.0pt;text-indent:9.0pt"> <span style="background:yellow;mso-highlight:yellow">
rg_a_public_ip: {get_attr: [rg_a, rg_a_public_ip]}</span> -------------------- the value is “null”<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:9.0pt;text-indent:9.0pt"> …<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">outputs:<o:p></o:p></p>
<p class="MsoNormal" style="text-indent:4.5pt"> <span style="background:yellow;mso-highlight:yellow">
rg_a_public_ip: {get_attr: [rg_a, rg_a_public_ip]}</span> --------------------- the value is correct.<o:p></o:p></p>
<p class="MsoNormal">--------------------------<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">------b.yaml --------------------<o:p></o:p></p>
<p class="MsoNormal">…<o:p></o:p></p>
<p class="MsoNormal">resources:<o:p></o:p></p>
<p class="MsoNormal"> <span style="background:yellow;mso-highlight:yellow">rg_a:</span>
<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.25in;text-indent:9.0pt">type: OS::Nova::Server<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.25in;text-indent:9.0pt">properties:<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.25in;text-indent:9.0pt"> …<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.25in;text-indent:9.0pt">outputs:<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.25in;text-indent:9.0pt"> <span style="background:yellow;mso-highlight:yellow">
rg_a_public_ip:</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.25in;text-indent:9.0pt"> value: {get_attr: [rg_a, networks, public, 0]}
<o:p></o:p></p>
<p class="MsoNormal">--------------------------<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">---------- c.yaml --------------------<o:p></o:p></p>
<p class="MsoNormal">parameters:<o:p></o:p></p>
<p class="MsoNormal" style="text-indent:9.0pt"><span style="background:yellow;mso-highlight:yellow">rg_a_public_ip:</span><o:p></o:p></p>
<p class="MsoNormal" style="text-indent:9.0pt"> type: string<o:p></o:p></p>
<p class="MsoNormal" style="text-indent:9.0pt"> description: IP of rg_a<o:p></o:p></p>
<p class="MsoNormal" style="text-indent:9.0pt">…<o:p></o:p></p>
<p class="MsoNormal">resources:<o:p></o:p></p>
<p class="MsoNormal" style="text-indent:9.0pt">rg_b:<o:p></o:p></p>
<p class="MsoNormal" style="text-indent:9.0pt"> type: OS::Nova::Server<o:p></o:p></p>
<p class="MsoNormal" style="text-indent:9.0pt"> properties:<o:p></o:p></p>
<p class="MsoNormal" style="text-indent:9.0pt"> …<o:p></o:p></p>
<p class="MsoNormal" style="text-indent:9.0pt"> outputs:<o:p></o:p></p>
<p class="MsoNormal" style="text-indent:9.0pt"> …<o:p></o:p></p>
<p class="MsoNormal">---------------------------------------<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Regards,<o:p></o:p></p>
<p class="MsoNormal">Gary<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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