Infrastructure at your Service
A couple of weeks ago, a customer asked me how to restart containers automatically after a reboot of the underlying host. In his context, it was not an insignificant question because some containers are concerned by SQL Server databases and he wanted to stay relaxed as long as possible even after a maintenance of the Linux host by sysadmins. The concerned (DEV) environment doesn’t include container orchestration like Swarm or Kubernetes. The interesting point is…
Auditing operations with Oracle Database is very easy. The default configuration, where SYSDBA operations go to ‘audit_file_dest’ (the ‘adump’ directory) and other operations go to the database may be sufficient to log what is done but is definitely not a correct security audit method as both destinations can have their audit trail deleted by the DBA. If you want to secure your environment by auditing the most privileged accounts, you need to send the audit…
This blog post comes from an interesting experience with one customer about upgrading SQL Server on a Docker environment. Let’s set quickly the context: a production environment that includes a standalone Docker engine on the top of openSUSE Linux distribution with some SQL Server 2017 Linux containers. The deal was to update those SQL Server instances from 2017 CU1 to 2017 CU7. The point is we applied the same kind of upgrades earlier on the morning but it…
After spending some times with Docker Swarm let’s introduce SQL Server on Kubernetes (aka K8s). Why another container orchestrator? Well, because Microsoft gives a strong focus on Kubernetes in their documentation and their events and because K8s is probably one of the most popular orchestration tools in the IT industry. By the way, I like to refer to the Portworx Annual Container Adoption Survey to get a picture of container trend over the years and we…
The next SQL Saturday in Paris is coming soon and the agenda has been published by the @GUSS on twitter. Le prochain SQL Saturday Paris arrive bientôt et l’agenda a été publié sur Twitter par le @GUSS Cette année, un savant mélange de speakers francophones et internationaux, un plus pour les participants … Un rapide coup d’œil à l’agenda – si on se focalise sur la partie moteur SQL Server – montre également qu’une bonne…
A couple of days ago, the Windows 10 april 2018 update was installed on my laptop. And what, you may say? Well, surprisingly this update provides some interesting “hidden” features and one of them concerns OpenSSH that is now available on-demand in Windows 10 (and likely available soon on Windows Server). This a obviously a good news because so far, I used either putty or directly a bash environment from my Windows 10 laptop available since…
Docker swarm mode provides an easy way to publish ports for services. Indeed, in this mode all nodes participate in an ingress routing mesh and accept connections to any service port published. Thus, all incoming requests are routed to available nodes hosting a service. That’s a pretty cool feature but it has some drawbacks. Let’s say that a node goes wrong … In this case the application must retry connecting to the next available node…
A couple of weeks ago, I was working on a MSSQL Server docker image in a context of Hidora, a swiss cloud provider based on jelastic and for Docker-based applications. When writing my jps manifest file I was agreeably surprised about the section concerning the MSSQL Server credentials information. We may able to define global variables for SQL Server sa password with ${fn.password} as function as shown below: globals: sa_password: ${fn.password} user_password: ${fn.password} nodes: -…
Yes, sounds strange, but exactly this is what we faced today. In the end it is clear and not strange anymore but for a moment we really thought we are hitting a bug in the operating system, which was RedHat 7.4. For the little demo for this post I’ll use CentOS 7.4 but this should not really matter. Lets go.
To do some application and performances tests, I had to copy a database from a third party Linux server to an ODA X7-2M. Looks pretty simple on the paper, but 2 small challenges came into the game. The first was that of course the source database was in Non-OMF while ODA works fully in OMF. The second was that the source database is running 11.2.0.3 which is not supported and cannot be installed on the…
