Merhabalar, bu yazımızda spring boot uygulamamızı docker’da nasıl çalıştırırız ona bakacağız.
Movie Application
Uygulamayı git reposu üzerinden (github repo) inceleyebilir, heroku(app-movies) üzerinden de erişebilirsiniz.
Uygulamamız kabaca bir film arama uygulaması. http://www.omdbapi.com adresinin sağlamış olduğu api ile film sorgulama yapıyoruz sadece. Çıktı aşağıdakine benzer olacaktır;
Uygulamayı git reposundan incelersiniz. Biz asıl konumuz olan Docker ile ilgili kısma geçelim. Dockerfile’a bakalım;
FROM java:8
VOLUME /tmp
ADD target/demo-0.0.1-SNAPSHOT.jar movie.jar
RUN bash -c 'touch /movie.jar'
EXPOSE 8080
ENTRYPOINT ["java","-jar","/movie.jar"]
Image’ımız java:8’den miras alıyor. Volume olarak yani datalarımızı /tmp altında tutuyoruz. ADD komutu ile proje altındaki jar dosyamızı movie.jar olarak image içerisinde oluşturduk. 8080 portundan expose ederek java -jar movie.jar diyerek uygulamayı başlatmış olduk.
docker build -t aakkus/movie . ile image’ı build edelim.
root@alican-laptop:/home/alican/examples/docker-demo# docker build -t aakkus/movie .
Sending build context to Docker daemon 24.1MB
Step 1/6 : FROM java:8
---> d23bdf5b1b1b
Step 2/6 : VOLUME /tmp
---> Using cache
---> 134ab173f75a
Step 3/6 : ADD target/demo-0.0.1-SNAPSHOT.jar movie.jar
---> 11e0ffe4617c
Removing intermediate container aa2fa291e2e3
Step 4/6 : RUN bash -c 'touch /movie.jar'
---> Running in b02dc48d720b
---> 88a4f62b28c6
Removing intermediate container b02dc48d720b
Step 5/6 : EXPOSE 8080
---> Running in 56a703f5da87
---> c7da9533ecca
Removing intermediate container 56a703f5da87
Step 6/6 : ENTRYPOINT java -jar /movie.jar
---> Running in 1e6d27601ebd
---> c3feed08d1f2
Removing intermediate container 1e6d27601ebd
Successfully built c3feed08d1f2
root@alican-laptop:/home/alican/examples/docker-demo# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
aakkus/movie latest c3feed08d1f2 7 seconds ago 687MB
aakkus/my-redis latest 0d466e451b64 24 hours ago 183MB
aakkus/my-redis <none> 524fb1742e57 24 hours ago 183MB
aakkus/curl latest e9aaf778fe3e 3 days ago 186MB
microsoft/mssql-server-linux latest ba95cfb67ac1 6 days ago 1.33GB
mysql latest d5127813070b 13 days ago 407MB
aakkus/iyzico-challenge latest 63f7b5a24734 2 weeks ago 734MB
iyzico-challenge latest 63f7b5a24734 2 weeks ago 734MB
aakkus/selam-docker latest 9a77937b4106 3 weeks ago 129MB
aakkus/pingpongwithjava latest ebd5d61a6b44 7 weeks ago 643MB
Image’ı başarıyla oluşturduk. Şimdi ise run edelim;
root@alican-laptop:/home/alican# docker run -d -p 8080:8080 aakkus/movie
d0a6bf08b4cec12bf081d5c7293faa2c90ef0c1bdb26ab217ea358ca2e42d907
root@alican-laptop:/home/alican#
Çalışıyor mu ona bakalım;
root@alican-laptop:/home/alican# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
d0a6bf08b4ce aakkus/movie "java -jar /movie.jar" 28 seconds ago Up 27 seconds 0.0.0.0:8080->8080/tcp elastic_haibt
root@alican-laptop:/home/alican#
Host’da ki 8080’den container’daki 8080’e doğru bir mapping var. Tarayıcıdan localhost:8080 adresine giderek erişebiliriz.
Spring metrics’e erişmeye çalışalım;
root@alican-laptop:/home/alican/examples/docker-demo# curl localhost:8080/manage/metrics
{
"mem" : 459374,
"mem.free" : 372978,
"processors" : 4,
"instance.uptime" : 124123,
"uptime" : 129816,
"systemload.average" : 1.4,
"heap.committed" : 406528,
"heap.init" : 124928,
"heap.used" : 33549,
"heap" : 1753088,
"nonheap.committed" : 54168,
"nonheap.init" : 2496,
"nonheap.used" : 52847,
"nonheap" : 0,
"threads.peak" : 23,
"threads.daemon" : 19,
"threads.totalStarted" : 26,
"threads" : 21,
"classes" : 6420,
"classes.loaded" : 6420,
"classes.unloaded" : 0,
"gc.ps_scavenge.count" : 8,
"gc.ps_scavenge.time" : 137,
"gc.ps_marksweep.count" : 2,
"gc.ps_marksweep.time" : 202,
"httpsessions.max" : -1,
"httpsessions.active" : 0
}
root@alican-laptop:/home/alican/examples/docker-demo# curl localhost:8080/manage/health
{
"status" : "UP",
"diskSpace" : {
"status" : "UP",
"total" : 109854089216,
"free" : 23456473088,
"threshold" : 10485760
}
}
root@alican-laptop:/home/alican/examples/docker-demo#
Container’a bağlanalım;
root@alican-laptop:/home/alican# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
d0a6bf08b4ce aakkus/movie "java -jar /movie.jar" 28 seconds ago Up 27 seconds 0.0.0.0:8080->8080/tcp elastic_haibt
root@alican-laptop:/home/alican# docker exec -it d0a6bf08b4ce bash
root@d0a6bf08b4ce:/# pwd
/
root@d0a6bf08b4ce:/# cd /
root@d0a6bf08b4ce:/# ls
bin boot dev etc home lib lib64 media mnt movie.jar opt proc root run sbin srv sys tmp usr var
root@d0a6bf08b4ce:/# cd tmp/
root@d0a6bf08b4ce:/tmp# ls
hsperfdata_root tomcat-docbase.9104758411988217824.8080 tomcat.5985442616978849313.8080
Spring’in loguna gidelim;
root@alican-laptop:/home/alican# docker logs d0a6bf08b4ce
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v1.5.3.RELEASE)
2017-04-25 08:46:00.131 INFO 1 --- [ main] com.caysever.DemoApplication : Starting DemoApplication v0.0.1-SNAPSHOT on d0a6bf08b4ce with PID 1 (/movie.jar started by root in /)
2017-04-25 08:46:00.136 INFO 1 --- [ main] com.caysever.DemoApplication : No active profile set, falling back to default profiles: default
2017-04-25 08:46:00.671 INFO 1 --- [ main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@5a2e4553: startup date [Tue Apr 25 08:46:00 UTC 2017]; root of context hierarchy
2017-04-25 08:46:02.886 INFO 1 --- [ main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat initialized with port(s): 8080 (http)
2017-04-25 08:46:02.905 INFO 1 --- [ main] o.apache.catalina.core.StandardService : Starting service Tomcat
2017-04-25 08:46:02.906 INFO 1 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/8.5.14
2017-04-25 08:46:03.003 INFO 1 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2017-04-25 08:46:03.003 INFO 1 --- [ost-startStop-1] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 2339 ms
2017-04-25 08:46:03.266 INFO 1 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean : Mapping servlet: 'dispatcherServlet' to [/]
2017-04-25 08:46:03.270 INFO 1 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'metricsFilter' to: [/*]
2017-04-25 08:46:03.271 INFO 1 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'characterEncodingFilter' to: [/*]
2017-04-25 08:46:03.271 INFO 1 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2017-04-25 08:46:03.271 INFO 1 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'httpPutFormContentFilter' to: [/*]
2017-04-25 08:46:03.271 INFO 1 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'requestContextFilter' to: [/*]
2017-04-25 08:46:03.271 INFO 1 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'webRequestLoggingFilter' to: [/*]
2017-04-25 08:46:03.271 INFO 1 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'applicationContextIdFilter' to: [/*]
2017-04-25 08:46:03.993 INFO 1 --- [ main] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for @ControllerAdvice: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@5a2e4553: startup date [Tue Apr 25 08:46:00 UTC 2017]; root of context hierarchy
2017-04-25 08:46:04.088 INFO 1 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/],methods=[GET]}" onto public java.lang.String com.caysever.controller.HomeController.home()
2017-04-25 08:46:04.093 INFO 1 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)
2017-04-25 08:46:04.094 INFO 1 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity<java.util.Map<java.lang.String, java.lang.Object>> org.springframework.boot.autoconfigure.web.BasicErrorController.error(javax.servlet.http.HttpServletRequest)
2017-04-25 08:46:04.134 INFO 1 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2017-04-25 08:46:04.135 INFO 1 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2017-04-25 08:46:04.199 INFO 1 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2017-04-25 08:46:04.834 INFO 1 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/manage/trace || /manage/trace.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-04-25 08:46:04.835 INFO 1 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/manage/health || /manage/health.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.HealthMvcEndpoint.invoke(javax.servlet.http.HttpServletRequest,java.security.Principal)
2017-04-25 08:46:04.838 INFO 1 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/manage/loggers/{name:.*}],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.LoggersMvcEndpoint.get(java.lang.String)
2017-04-25 08:46:04.838 INFO 1 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/manage/loggers/{name:.*}],methods=[POST],consumes=[application/vnd.spring-boot.actuator.v1+json || application/json],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.LoggersMvcEndpoint.set(java.lang.String,java.util.Map<java.lang.String, java.lang.String>)
2017-04-25 08:46:04.839 INFO 1 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/manage/loggers || /manage/loggers.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-04-25 08:46:04.840 INFO 1 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/manage/metrics/{name:.*}],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.MetricsMvcEndpoint.value(java.lang.String)
2017-04-25 08:46:04.840 INFO 1 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/manage/metrics || /manage/metrics.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-04-25 08:46:04.841 INFO 1 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/manage/auditevents || /manage/auditevents.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public org.springframework.http.ResponseEntity<?> org.springframework.boot.actuate.endpoint.mvc.AuditEventsMvcEndpoint.findByPrincipalAndAfterAndType(java.lang.String,java.util.Date,java.lang.String)
2017-04-25 08:46:04.841 INFO 1 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/manage/autoconfig || /manage/autoconfig.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-04-25 08:46:04.845 INFO 1 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/manage/env/{name:.*}],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EnvironmentMvcEndpoint.value(java.lang.String)
2017-04-25 08:46:04.845 INFO 1 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/manage/env || /manage/env.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-04-25 08:46:04.846 INFO 1 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/manage/info || /manage/info.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-04-25 08:46:04.847 INFO 1 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/manage/dump || /manage/dump.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-04-25 08:46:04.848 INFO 1 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/manage/configprops || /manage/configprops.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-04-25 08:46:04.848 INFO 1 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/manage/mappings || /manage/mappings.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-04-25 08:46:04.849 INFO 1 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/manage/heapdump || /manage/heapdump.json],methods=[GET],produces=[application/octet-stream]}" onto public void org.springframework.boot.actuate.endpoint.mvc.HeapdumpMvcEndpoint.invoke(boolean,javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse) throws java.io.IOException,javax.servlet.ServletException
2017-04-25 08:46:04.850 INFO 1 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/manage/beans || /manage/beans.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-04-25 08:46:04.951 INFO 1 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Registering beans for JMX exposure on startup
2017-04-25 08:46:04.963 INFO 1 --- [ main] o.s.c.support.DefaultLifecycleProcessor : Starting beans in phase 0
2017-04-25 08:46:05.109 INFO 1 --- [ main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat started on port(s): 8080 (http)
2017-04-25 08:46:05.115 INFO 1 --- [ main] com.caysever.DemoApplication : Started DemoApplication in 5.395 seconds (JVM running for 6.115)
2017-04-25 08:48:08.753 INFO 1 --- [nio-8080-exec-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring FrameworkServlet 'dispatcherServlet'
2017-04-25 08:48:08.754 INFO 1 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet : FrameworkServlet 'dispatcherServlet': initialization started
2017-04-25 08:48:08.774 INFO 1 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet : FrameworkServlet 'dispatcherServlet': initialization completed in 20 ms
root@alican-laptop:/home/alican#
Herşey yolunda görünüyor. Docker hub’dan çekmek için şunu kullanabilirsiniz; docker pull aakkus/movie
Yazıymızı burada sonlandırıyoruz, bir sonraki yazımızda Docker Network konusuna değineceğiz.
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