SQL Server inside a docker container. Christophe LAPORTE SQL Server MVP/MCM SQL Saturday 735 Helsinki 2018

Transcription

1 SQL Server inside a docker container Christophe LAPORTE SQL Server MVP/MCM SQL Saturday 735 Helsinki 2018

2 Christophe LAPORTE ~ since 1997 : SQL 6.5 / WinNT4 christophe_laporte@hotmail.fr

3 Apologies French speaker

4 Toulouse South West of France

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6 Agenda Micro services et containers Installing Docker Creating my first container Running a SQL Server container Creating multi-container Applications Q/A

7 Micro services The end of monolithic application New way to develop applications Lightweight pieces of SW evolving independently 1, 10s or 100s of containers composed as a single application DevOps Continuous integration and deployment made easier Accelerate development and deployment Seems to become a standard

8 Docker Initially a French company Since 2008 but has moved to the US Platform For developers and sysadmins Mission : Build, Ship, Run Terminology Image : Read-only template with instructions for creating a container Container : Runnable instance of an image, isolated from surroundings*

9 Docker containers Small system footprint Lightweight -> better efficiency on host servers Single image Multiple deployments (dev / test / prod) Avoid : it works on my computer! Will always run the same Regardless of where it is deployed WORA : Write Once Run Anywhere PODA : Package Once Deploy Anywhere

10 Demo Installing Docker

11 Docker Docker client Command line utility Docker engine Containers execution

12 Demo My first Docker commands

13 Docker commands vs traditional software traditional software Docker command Find the binaries for setup Docker search Download and mount ISO file Docker pull Create ISO / Zip file Docker build Install the software Docker create Run the software Docker start Download, install and run software (all-in-one) Docker run Stop the software Docker stop Uninstall the software Docker rm

14 Demo my first container

15 App A App A App B Bins/Libs Bins/Libs Bins/Libs App B Bins/Libs Virtual machine vs container Better consolidation ratio Guest OS Guest OS Guest OS Guest OS App A App A App B App B App B App B App B App B Hypervisor Host OS Server Bins/Libs Bins/Libs Docker Engine Host OS Server

16 Virtual machine vs container Can be run baremetal Can be run inside VMs

17 Microsoft pushing Docker hard

18 dockerfile file Build customized image Script based # Comments FROM (1..N) LABEL MAINTAINER ENV (1..N) COPY / ADD (1..N) RUN (1..N) CMD (1)

19 Docker Hub the easiest way to get an image Images repository Search images Pull images Push images Microsoft official images IIS, SQL Server, MongoDB,

20 Demo pulling a SQL Server image

21 Docker & SQL Server Why using containers? You can install multiple instances of SQL Server No named instance on Linux Create and run a container in a few seconds Suitable for dev and test purpose Collocate different versions of one app Portable Same user experience on Docker Windows / Mac / Linux and public cloud Runs the same everywhere Licensing fees Same licensing rules than VMs

22 Scenarios - Docker & SQL Server Development instances Same user experience Windows, Mac, Linux On demand test instances Fast deployment Stateless On demand support instances Build environment similar to customer in a few seconds App v SQL Server App v SQL Server App v SQL Server Production instances? Question of time : virtualizing SQL Server tier-1 DB is quite recent

23 Docker run command line docker run --detach --name sqldocker --hostname sqldocker --cpuset-cpus="0,1" --memory="2gb" --memory-swap="2gb" --env 'MSSQL_PID=developer' --env 'ACCEPT_EULA=Y' --env 'SA_PASSWORD=Password1!' --publish 14331: volume /var/opt/mssql:/var/opt/mssql microsoft/mssql-server-linux

24 Demo Running a container

25 Monitoring Docker stat Container heath check Dockerfile instruction HEALTHCHECK CMD [ "sqlcmd", "-Q", "select 1" ] Docker compose healthcheck: test: ["CMD", "/opt/mssql-tools/bin/sqlcmd", "-Usa", "-PPassword1!", "-Q", "select 1"] Runtime DOCKER RUN --health-cmd 'sqlcmd -Q "select 1 " Inspect the status DOCKER PS Docker inspect -f '{{json.state.health.status}} containername

26 Monitoring DIY collectd / influxdb / grafana 3rd party Datadog New Relic Dynatrace

27 Demo monitoring Dockerfile Runtime

28 Compose application Docker compose Tool to define and run multi container Docker applications Yaml configuration file List of services (i.e. containers) Based on image or dockerfile (Build) With configuration Environment variables, ports and volume redirection Run Docker-compose up Docker-compose down Sample at

29 Public network. Docker network. Demo load balance workload SQL > 1433 SQLExpress (1433) SQL > 1433 SQLExpress Load balancer SQL > 1433 SQL > 1433 SQLExpress (1433) SQLExpress (1433) SQL > 1433 SQLExpress (1433)

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31 Next step Orchestration Docker swarm Kubernetes OpenShift Heat Infastructure as code Terraform Cloud formation Configuration management Chief Ansible

32 Containers 101 Key points Virtualization 2.0 : Stack Step #1 : hardware virtualization (Hyper-V, VMware) Step #2 : OS virtualization (Linux containers, Windows containers, Docker) Each layer can use the libraries provided by the underlaying level Each layer can evolve independently from each other Deployment DevOps style Accelerate development and application shipment Strong market trend

33 Thank you for attending Q&A Readings