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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. “rg_b” depends on “rg_a” and when “rg_b” instance is created, it requires the IP address of “rg_a”. and I use “rg_a_public_ip: {get_attr: [rg_a, rg_a_public_ip]}” and it returns “null” according
to the logs. But weird thing is that I can get the correct rg_a_public_ip in the “outputs” section of a.yaml.
<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 behaviors functions as designed?<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 my case if the answer to 1) is yes?<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"> rg1_public_ip: {get_attr: [rg_a, rg_a_public_ip]}<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>
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