tripleoclient doesn't retry when it gets 500 error from heat-api

[Keigo Noha]

Description
===========
tripleoclient doesn't retry when it gets 500 error from heat-api.
In very rare situation, like restarting httpd service by logrotate in undercloud causes that heat-api returns 500 code then tripleclient can't get the progress of the deployment.

Steps to reproduce
==================
1. Install undercloud.
2. Deploy overcloud and wait for the start of workflow.
3. Run 'systemctl reload httpd.service' in several times.
4. You will get 500 error from heat-api.

Expected result
===============
tripleclient retries the connection to heat-api and the client shows the progress of the deployment.

Actual result
=============
tripleoclient didn't retry the connection to heat-api then the command can't get the progress of the deployment.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/697939

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/697939
Committed: https://git.openstack.org/cgit/openstack/python-tripleoclient/commit/?id=932fc6755a8315ccde2e90848ad3224f1fe16735
Submitter: Zuul
Branch: master

commit 932fc6755a8315ccde2e90848ad3224f1fe16735
Author: Keigo Noha <email address hidden>
Date: Mon Dec 9 11:09:25 2019 +0900

    Retry the connection to heat-api when 500 code

    In a rare case like httpd reload by logrotate, heat-api returns
    500 code. If this happens, trpleoclient can't get the status of
    the stack even though the process is still on-going.

    To handle this situation, tipleoclient should retry when it can't
    get the stack information by 500 code.

    Change-Id: I97a6825f4ff9f125eb597e5b7bd0c553c37e49e7
    Closes-Bug: #1855633

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/train
Review: https://review.opendev.org/698900

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/stein
Review: https://review.opendev.org/698901

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/rocky
Review: https://review.opendev.org/698902

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/queens
Review: https://review.opendev.org/698903

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/698901
Committed: https://git.openstack.org/cgit/openstack/python-tripleoclient/commit/?id=06e31347cf4f87adb985e79bbe8a8227ba4cbf3e
Submitter: Zuul
Branch: stable/stein

commit 06e31347cf4f87adb985e79bbe8a8227ba4cbf3e
Author: Keigo Noha <email address hidden>
Date: Mon Dec 9 11:09:25 2019 +0900

    Retry the connection to heat-api when 500 code

    In a rare case like httpd reload by logrotate, heat-api returns
    500 code. If this happens, trpleoclient can't get the status of
    the stack even though the process is still on-going.

    To handle this situation, tipleoclient should retry when it can't
    get the stack information by 500 code.

    Change-Id: I97a6825f4ff9f125eb597e5b7bd0c553c37e49e7
    Closes-Bug: #1855633
    (cherry picked from commit 932fc6755a8315ccde2e90848ad3224f1fe16735)

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/698900
Committed: https://git.openstack.org/cgit/openstack/python-tripleoclient/commit/?id=40bccd51d87eddad89ab59b39e4dec0710b71608
Submitter: Zuul
Branch: stable/train

commit 40bccd51d87eddad89ab59b39e4dec0710b71608
Author: Keigo Noha <email address hidden>
Date: Mon Dec 9 11:09:25 2019 +0900

    Retry the connection to heat-api when 500 code

    In a rare case like httpd reload by logrotate, heat-api returns
    500 code. If this happens, trpleoclient can't get the status of
    the stack even though the process is still on-going.

    To handle this situation, tipleoclient should retry when it can't
    get the stack information by 500 code.

    Change-Id: I97a6825f4ff9f125eb597e5b7bd0c553c37e49e7
    Closes-Bug: #1855633
    (cherry picked from commit 932fc6755a8315ccde2e90848ad3224f1fe16735)

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/698903
Committed: https://git.openstack.org/cgit/openstack/python-tripleoclient/commit/?id=70b28932fda9135cb340d500d1dcf3ed2bdfc0b5
Submitter: Zuul
Branch: stable/queens

commit 70b28932fda9135cb340d500d1dcf3ed2bdfc0b5
Author: Keigo Noha <email address hidden>
Date: Mon Dec 9 11:09:25 2019 +0900

    Retry the connection to heat-api when 500 code

    In a rare case like httpd reload by logrotate, heat-api returns
    500 code. If this happens, trpleoclient can't get the status of
    the stack even though the process is still on-going.

    To handle this situation, tipleoclient should retry when it can't
    get the stack information by 500 code.

    Change-Id: I97a6825f4ff9f125eb597e5b7bd0c553c37e49e7
    Closes-Bug: #1855633
    (cherry picked from commit 932fc6755a8315ccde2e90848ad3224f1fe16735)

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/698902
Committed: https://git.openstack.org/cgit/openstack/python-tripleoclient/commit/?id=bcb511376a6f5208d66bc5e92e7df3f3319c4ca3
Submitter: Zuul
Branch: stable/rocky

commit bcb511376a6f5208d66bc5e92e7df3f3319c4ca3
Author: Keigo Noha <email address hidden>
Date: Mon Dec 9 11:09:25 2019 +0900

    Retry the connection to heat-api when 500 code

    In a rare case like httpd reload by logrotate, heat-api returns
    500 code. If this happens, trpleoclient can't get the status of
    the stack even though the process is still on-going.

    To handle this situation, tipleoclient should retry when it can't
    get the stack information by 500 code.

    Change-Id: I97a6825f4ff9f125eb597e5b7bd0c553c37e49e7
    Closes-Bug: #1855633
    (cherry picked from commit 932fc6755a8315ccde2e90848ad3224f1fe16735)

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/python-tripleoclient 12.3.1 release.

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/python-tripleoclient 13.1.0 release.

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/python-tripleoclient rocky-eol release.

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/python-tripleoclient queens-eol release.

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/python-tripleoclient stein-eol release.