managing rh/centos with suse manager · why manage rh/centos with suse manager? common challenges...
TRANSCRIPT
Managing RH/CentOS with
SUSE® ManagerTUT91274
Don Vosburg
Sales Engineer, SUSE
Gokhan Cetinkaya
Sales Engineer, SUSE
Agenda
● Why manage RH/CentOS with SUSE Manager?
● Common challenges and elements
● Using SUSE Expanded support and SUSE Manager
• Syncing channels
• Client bootstrap process
● Using Native channels
• For RH systems
• For CentOS systems
● Demonstrations
● Resources and links
● Questions2
Why manage RH/CentOS with SUSE Manager?
3
Why manage RH/CentOS with SUSE Manager?
● Unique offering that crosses enterprise distributions
● Like many organizations, you have SUSE and
RH/CentOS
● Other offerings have fallen short
● Terrific value
● The promise of Salt...
4
Common Challenges and Elements
5
What does it take?
● Two supported environments
• Expanded Support subscription from SUSE
• RH Subscription entitlements - SUSE supports
the SUSE Manager functions only, not patch
content
● Patience and effort can produce an effective
management platform6
Challenges
● RHN stack is now “classic”
● Large repositories
• Disk space needed in /var/spacewalk
• Initial channel sync can tax taskomatic
● SUSE only owns package/patch content from
Expanded Support channels
● Documentation is sometimes unclear or non-
specific7
Key common elements
● Increased load/time for initial channel sync
● Monitoring of errata and errata parsing
● Bootstrap repositories - necessary for RH5,
CentOS
● GPG keys for repositories used
● Modified bootstrap scripts to make registration
effective
8
Using SUSE Expanded Support with SUSE Manager
9
Expanded Support features
● Supports both RH and CentOS with the same patch
stream
● SUSE Customer Center is the source of the
channels
• mgr-sync and GUI product integration
• Experience is most like SLE and the standard
documentation
● Like RH - single large channel
● Unlike RH - base media is customer-provided
10
Channels with Expanded Support
● Parent channel has 0 packages
● SUSE Manager can sync three channels
• resX-platform
• resX-ha-platform
• resX-suse-manager-tools-platform
● Base media channel must be added for
dependency resolution
• https://wiki.microfocus.com/index.php/SUSE_Manager/Sync_RH
EL_media11
Expanded Support recommendations
● Add base media repo(s) as child channels
• Use activation keys to assign channels properly
• Keep the parent channel empty if you have both
RH and CentOS clients
● Provision /var/spacewalk adequately
● Increase maximum memory for taskomatic JVM
• https://wiki.microfocus.com/index.php/SUSE_Manager/Tuning_
Central_Config#taskomatic.java.maxmemory_.3D_2048
● Keep in mind the binary relationship with RH
subscriptions 12
Using RH Native Channels with SUSE Manager
13
RH Native Update - advantages
● Full SUSE Manager functionality
● No intermediary software required
● Uses the same entitlement certificates as any RH
update tool
● User gets all the channels subscribed
● It is not Satellite 6
● Errata parsing integrated
• Patch severity and relevance maintained!14
RH Native update - How does it work?
● Requires user-maintained RH entitlement
● Integrates with custom channels
• User supplies channel URL and certificate
information
• User sets synchronization schedule
● Base media included in the server channel
● SUSE Manager tools channel must be created for
client functionality
• Cloned from the res tools channel 15
Using CentOS Native Channels with SUSE Manager
16
CentOS Native update - How does it work?
● Uses the spacewalk-common-channels script
to create custom channels
• User sets synchronization schedule
● Base media included in the base channel
● SUSE Manager tools channel must be created for
client functionality
• Cloned from the res tools channel
● Bootstrap repository from res tools needed17
CentOS Native - Errata parsing
● CentOS native channels will show no patch/errata
info without separate action
● Instructions on the SUSE Manager wiki specific to
this:
• Perl script and errata info must be downloaded
• Specify the channels to include/exclude
• Schedule via cron
● Not supported by SUSE18
Demonstration
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Resources and Links
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Resources for RH and SUSE Manager
Expanded support homepage:
https://www.suse.com/products/expandedsupport
SUSE Manager wiki:
https://wiki.microfocus.com/index.php/SUSE_Manager
Other relevant SUSE Manager sessions at SUSECon 2016:
BOV89033 - Using SUSE Manager's Audit capabilities to improve efficiency and security
CAS91938 - SUSE Manager 3 & SaltStack at Tyson Foods
FUT92726 - The SUSE Manager Roadmap: A journey towards agile management of workloads in the enterprise
HO91268 - SUSE Manager for Smarties - Hands On Salt and SUSE Manager
TUT91318 - Popular Usecases of SUSE Manager in Heterogeneous Environments
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Questions???
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