<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-family: Calibri, sans-serif;"><div>Hi Ifat,</div><span id="OLK_SRC_BODY_SECTION"><div style="font-family:Calibri; font-size:11pt; text-align:left; color:black; BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid; BORDER-RIGHT: medium none; PADDING-TOP: 3pt"><span style="font-weight:bold">From: </span> "Afek, Ifat (Nokia - IL/Kfar Sava)" <<a href="mailto:ifat.afek@nokia.com">ifat.afek@nokia.com</a>><br><span style="font-weight:bold">Reply-To: </span> "OpenStack Development Mailing List (not for usage questions)" <<a href="mailto:openstack-dev@lists.openstack.org">openstack-dev@lists.openstack.org</a>><br><span style="font-weight:bold">Date: </span> Sunday, January 7, 2018 at 4:00 AM<br><span style="font-weight:bold">To: </span> "OpenStack Development Mailing List (not for usage questions)" <<a href="mailto:openstack-dev@lists.openstack.org">openstack-dev@lists.openstack.org</a>><br><span style="font-weight:bold">Subject: </span> Re: [openstack-dev] [congress] generic push driver<br></div><div><br></div><blockquote id="MAC_OUTLOOK_ATTRIBUTION_BLOCKQUOTE" style="BORDER-LEFT: #b5c4df 5 solid; PADDING:0 0 0 5; MARGIN:0 0 0 5;"><div xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><meta name="Title" content=""><meta name="Keywords" content=""><meta name="Generator" content="Microsoft Word 15 (filtered medium)"><style><!--
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--></style><div bgcolor="white" lang="EN-US" link="#0563C1" vlink="#954F72"><div class="WordSection1"><p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">Hi Eric,<o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri"><o:p> </o:p></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">I have two questions:<o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri"><o:p> </o:p></span></p><p class="MsoListParagraphCxSpFirst" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><!--[if !supportLists]--><span style="font-size:11.0pt;font-family:Calibri"><span style="mso-list:Ignore">1.<span style="font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman';">
</span></span></span><!--[endif]--><span dir="LTR"></span><span style="font-size:11.0pt;font-family:Calibri">An alarm is usually raised on a resource, and in Vitrage we can send you the details of that resource. Is there a way in Congress for the alarm to reference
a resource that exists in another table? And what if the resource does not exist in Congress?</span></p></div></div></div></blockquote></span><div>First, the columns I chose are just a minimal sample to illustrate the generic nature of the driver. In use with vitrage, we would probably also want to include columns such as `resource_id`. Does that address the need to reference a resource? That resource referenced by ID may or may not exist in another part of Congress. It would be the job of the policy to resolve references when taking appropriate actions. If referential integrity is needed, additional policy rules can be specified to catch breakage.</div><div><br></div><div>This brings up a related question I had about vitrage:</div><div>Looking at the vertex properties listed here: <a href="https://github.com/openstack/vitrage/blob/master/vitrage/common/constants.py#L17">https://github.com/openstack/vitrage/blob/master/vitrage/common/constants.py#L17</a></div><div><br></div><div>Where can I find more information about the type and content of data in each property?</div><div><br></div><div>Exapmle:</div><div>- is the `resource` property an ID string or a python object reference?</div><div>- what does the property `<span style="color: rgb(3, 47, 98); font-family: SFMono-Regular, Consolas, 'Liberation Mono', Menlo, Courier, monospace; font-size: 12px; white-space: pre; background-color: rgb(255, 255, 255);">is_real_vitrage_id` </span>represent?</div><div>- what is the difference between `<span style="color: rgb(3, 47, 98); font-family: SFMono-Regular, Consolas, 'Liberation Mono', Menlo, Courier, monospace; font-size: 12px; white-space: pre; background-color: rgb(255, 255, 255);">resource_id</span>` and `<span style="color: rgb(3, 47, 98); font-family: SFMono-Regular, Consolas, 'Liberation Mono', Menlo, Courier, monospace; font-size: 12px; white-space: pre; background-color: rgb(255, 255, 255);">vitrage_resource_id</span>` ?</div><div><br></div><span id="OLK_SRC_BODY_SECTION"><blockquote id="MAC_OUTLOOK_ATTRIBUTION_BLOCKQUOTE" style="BORDER-LEFT: #b5c4df 5 solid; PADDING:0 0 0 5; MARGIN:0 0 0 5;"><div xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><div bgcolor="white" lang="EN-US" link="#0563C1" vlink="#954F72"><div class="WordSection1"><p class="MsoListParagraphCxSpFirst" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><span style="font-size:11.0pt;font-family:Calibri"><o:p></o:p></span></p><p class="MsoListParagraphCxSpLast" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><!--[if !supportLists]--><span style="font-size:11.0pt;font-family:Calibri"><span style="mso-list:Ignore">2.<span style="font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman';">
</span></span></span><!--[endif]--><span dir="LTR"></span><span style="font-size:11.0pt;font-family:Calibri">Do you plan to support also updateRows? This can be useful for alarm state changes.</span></p></div></div></div></blockquote></span><div>Are you thinking about updating an entire row or updating a specific field of a row? That is, update </div><div>Row {"id":"1-1", "name":"name1", "state":"active", "severity":1} to become {"id":"1-1", "name":"name1", "state":"active", "severity":100}</div><div>Vs</div><div>Update the severity field of row with id "1-1" to severity 100.</div><div>Both could be supported, but the second one is more complex to support efficiently.</div><div><br></div><div>Thanks!</div><div>Eric</div><span id="OLK_SRC_BODY_SECTION"><blockquote id="MAC_OUTLOOK_ATTRIBUTION_BLOCKQUOTE" style="BORDER-LEFT: #b5c4df 5 solid; PADDING:0 0 0 5; MARGIN:0 0 0 5;"><div xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><div bgcolor="white" lang="EN-US" link="#0563C1" vlink="#954F72"><div class="WordSection1"><p class="MsoListParagraphCxSpLast" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><span style="font-size:11.0pt;font-family:Calibri"><o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri"><o:p> </o:p></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">Thanks,<o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">Ifat<o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri"><o:p> </o:p></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri"><o:p> </o:p></span></p><div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm"><p class="MsoNormal"><b><span style="font-family:Calibri;color:black">From: </span></b><span style="font-family:Calibri;color:black">Eric K <<a href="mailto:ekcs.openstack@gmail.com">ekcs.openstack@gmail.com</a>><br><b>Reply-To: </b>"OpenStack Development Mailing List (not for usage questions)" <<a href="mailto:openstack-dev@lists.openstack.org">openstack-dev@lists.openstack.org</a>><br><b>Date: </b>Saturday, 6 January 2018 at 3:50<br><b>To: </b>"OpenStack Development Mailing List (not for usage questions)" <<a href="mailto:openstack-dev@lists.openstack.org">openstack-dev@lists.openstack.org</a>><br><b>Subject: </b>[openstack-dev] [congress] generic push driver<o:p></o:p></span></p></div><div><p class="MsoNormal"><o:p> </o:p></p></div><div><div><p class="MsoNormal">We've been discussing generic push drivers for Congress for quite a while. Finally sketching out something concrete and looking for some preliminary feedback. Below are sample interactions with a proposed generic push driver. A generic
push driver could be used to receive push updates from vitrage, monasca, and many other sources.<o:p></o:p></p></div><div><p class="MsoNormal"><o:p> </o:p></p></div><div><p class="MsoNormal">1. creating a datasource:<o:p></o:p></p></div><div><p class="MsoNormal"><o:p> </o:p></p></div><div><p class="MsoNormal">congress datasource create generic_push_driver vitrage --config schema='<o:p></o:p></p></div><div><p class="MsoNormal">{<o:p></o:p></p></div><div><p class="MsoNormal"> "tables":[<o:p></o:p></p></div><div><p class="MsoNormal"> {<o:p></o:p></p></div><div><p class="MsoNormal"> "name":"alarms",<o:p></o:p></p></div><div><p class="MsoNormal"> "columns":[<o:p></o:p></p></div><div><p class="MsoNormal"> "id",<o:p></o:p></p></div><div><p class="MsoNormal"> "name",<o:p></o:p></p></div><div><p class="MsoNormal"> "state",<o:p></o:p></p></div><div><p class="MsoNormal"> "severity",<o:p></o:p></p></div><div><p class="MsoNormal"> ]<o:p></o:p></p></div><div><p class="MsoNormal"> }<o:p></o:p></p></div><div><p class="MsoNormal"> ]<o:p></o:p></p></div><div><p class="MsoNormal">}<o:p></o:p></p></div><div><p class="MsoNormal">'<o:p></o:p></p></div><div><p class="MsoNormal"><o:p> </o:p></p></div><div><p class="MsoNormal">2. Update an entire table:<o:p></o:p></p></div><div><p class="MsoNormal"><o:p> </o:p></p></div><div><p class="MsoNormal">PUT '/v1/data-sources/vitrage/tables/alarms' with body:<o:p></o:p></p></div><div><p class="MsoNormal">{<o:p></o:p></p></div><div><p class="MsoNormal"> "rows":[<o:p></o:p></p></div><div><p class="MsoNormal"> {<o:p></o:p></p></div><div><p class="MsoNormal"> "id":"1-1",<o:p></o:p></p></div><div><p class="MsoNormal"> "name":"name1",<o:p></o:p></p></div><div><p class="MsoNormal"> "state":"active",<o:p></o:p></p></div><div><p class="MsoNormal"> "severity":1<o:p></o:p></p></div><div><p class="MsoNormal"> },<o:p></o:p></p></div><div><p class="MsoNormal"> [<o:p></o:p></p></div><div><p class="MsoNormal"> "1-2",<o:p></o:p></p></div><div><p class="MsoNormal"> "name2",<o:p></o:p></p></div><div><p class="MsoNormal"> "active",<o:p></o:p></p></div><div><p class="MsoNormal"> 2<o:p></o:p></p></div><div><p class="MsoNormal"> ]<o:p></o:p></p></div><div><p class="MsoNormal"> ]<o:p></o:p></p></div><div><p class="MsoNormal">}<o:p></o:p></p></div><div><p class="MsoNormal">Note that a row can be either a {} or []<o:p></o:p></p></div><div><p class="MsoNormal"><o:p> </o:p></p></div><div><p class="MsoNormal"><o:p> </o:p></p></div><div><p class="MsoNormal">3. perform differential update:<o:p></o:p></p></div><div><p class="MsoNormal"><o:p> </o:p></p></div><div><p class="MsoNormal">PUT '/v1/data-sources/vitrage/tables/alarms' with body:<o:p></o:p></p></div><div><p class="MsoNormal">{<o:p></o:p></p></div><div><p class="MsoNormal"> "addrows":[<o:p></o:p></p></div><div><p class="MsoNormal"> {<o:p></o:p></p></div><div><p class="MsoNormal"> "id":"1-1",<o:p></o:p></p></div><div><p class="MsoNormal"> "name":"name1",<o:p></o:p></p></div><div><p class="MsoNormal"> "state":"active",<o:p></o:p></p></div><div><p class="MsoNormal"> "severity":1<o:p></o:p></p></div><div><p class="MsoNormal"> },<o:p></o:p></p></div><div><p class="MsoNormal"> [<o:p></o:p></p></div><div><p class="MsoNormal"> "1-2",<o:p></o:p></p></div><div><p class="MsoNormal"> "name2",<o:p></o:p></p></div><div><p class="MsoNormal"> "active",<o:p></o:p></p></div><div><p class="MsoNormal"> 2<o:p></o:p></p></div><div><p class="MsoNormal"> ]<o:p></o:p></p></div><div><p class="MsoNormal"> ]<o:p></o:p></p></div><div><p class="MsoNormal">}<o:p></o:p></p></div><div><p class="MsoNormal"><o:p> </o:p></p></div><div><p class="MsoNormal">OR<o:p></o:p></p></div><div><p class="MsoNormal"><o:p> </o:p></p></div><div><p class="MsoNormal">{<o:p></o:p></p></div><div><p class="MsoNormal"> "deleterows":[<o:p></o:p></p></div><div><p class="MsoNormal"> {<o:p></o:p></p></div><div><p class="MsoNormal"> "id":"1-1",<o:p></o:p></p></div><div><p class="MsoNormal"> "name":"name1",<o:p></o:p></p></div><div><p class="MsoNormal"> "state":"active",<o:p></o:p></p></div><div><p class="MsoNormal"> "severity":1<o:p></o:p></p></div><div><p class="MsoNormal"> },<o:p></o:p></p></div><div><p class="MsoNormal"> [<o:p></o:p></p></div><div><p class="MsoNormal"> "1-2",<o:p></o:p></p></div><div><p class="MsoNormal"> "name2",<o:p></o:p></p></div><div><p class="MsoNormal"> "active",<o:p></o:p></p></div><div><p class="MsoNormal"> 2<o:p></o:p></p></div><div><p class="MsoNormal"> ]<o:p></o:p></p></div><div><p class="MsoNormal"> ]<o:p></o:p></p></div><div><p class="MsoNormal">}<o:p></o:p></p></div><div><p class="MsoNormal"><o:p> </o:p></p></div><div><p class="MsoNormal">Note 1: we may allow 'rows', 'addrows', and 'deleterows' to be used together with some well defined semantics. Alternatively we may mandate that each request can have only one of the three pieces.<o:p></o:p></p></div><div><p class="MsoNormal"><o:p> </o:p></p></div><div><p class="MsoNormal">Note 2: we leave it as the responsibility of the sender to send and confirm the requests for differential updates in correct order. We could add sequencing in future work.<o:p></o:p></p></div></div></div></div></div>
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