CentOS 7.6.1810 (Core) - how to update/upgrade on GCE?

[devlocalca]

On Google Cloud - Compute Engine, I installed the latest CentOS

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$cat /etc/centos-release
CentOS Linux release 7.6.1810 (Core) 

I am trying to upgrade/update , either one, and I get an error message.

I am trying both:

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$sudo yum upgrade -y
$sudo yum update -y

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In both instances, I get this error message: (see below). Is this an error with the distribution? or with Google's engineers that rolled/published the image?

Also:
1. How do I fix this for now?
2. How do I get Google to pull the image from their offerings in GCE? (anyone have contacts there?)
3. and to get Google to publish a working Centos 7 image

I am sure that I am not the only one having this problem. I have not had this problem in the past, using any CentOS image on GCE.

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ERORR ($sudo yum update -y)

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Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=7&arch=x86_64&repo=os&infra=stock error was
14: curl#7 - "Failed connect to mirrorlist.centos.org:80; Operation now in progress"


 One of the configured repositories failed (Unknown),
 and yum doesn't have enough cached data to continue. At this point the only
 safe thing yum can do is fail. There are a few ways to work "fix" this:

     1. Contact the upstream for the repository and get them to fix the problem.

     2. Reconfigure the baseurl/etc. for the repository, to point to a working
        upstream. This is most often useful if you are using a newer
        distribution release than is supported by the repository (and the
        packages for the previous distribution release still work).

     3. Run the command with the repository temporarily disabled
            yum --disablerepo=<repoid> ...

     4. Disable the repository permanently, so yum won't use it by default. Yum
        will then just ignore the repository until you permanently enable it
        again or use --enablerepo for temporary usage:

            yum-config-manager --disable <repoid>
        or
            subscription-manager repos --disable=<repoid>

     5. Configure the failing repository to be skipped, if it is unavailable.
        Note that yum will try to contact the repo. when it runs most commands,
        so will have to try and fail each time (and thus. yum will be be much
        slower). If it is a very temporary problem though, this is often a nice
        compromise:

            yum-config-manager --save --setopt=<repoid>.skip_if_unavailable=true

Cannot find a valid baseurl for repo: base/7/x86_64

[hunter86_bg]

"Failed connect to mirrorlist.centos.org:80; Operation now in progress"

Check manually access to the http://mirrorlist.centos.org .
Check the firewall rules on VPC.

[devlocalca]

I see that on 2019-Jul-19, Google posted the 7.6.1905 release, so used that and am not seeing the problem with this GCE image.