Created
December 28, 2021 11:53
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Create a docker image with Jib
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| ///usr/bin/env jbang "$0" "$@" ; exit $? | |
| //DEPS com.google.cloud.tools:jib-core:0.20.0 | |
| import java.nio.charset.StandardCharsets; | |
| import java.nio.file.Files; | |
| import java.nio.file.Path; | |
| import java.util.Arrays; | |
| import com.google.cloud.tools.jib.api.Containerizer; | |
| import com.google.cloud.tools.jib.api.DockerDaemonImage; | |
| import com.google.cloud.tools.jib.api.Jib; | |
| import com.google.cloud.tools.jib.api.buildplan.AbsoluteUnixPath; | |
| // inspired by https://www.docker.com/blog/how-to-use-the-official-nginx-docker-image/ | |
| // create the image with jbang: "jbang CreateWebserver.java" | |
| // run the image with "docker run -it --rm -d -p 8080:80 --name web webserver" | |
| public class CreateWebserver { | |
| public static void main(String... args) throws Exception { | |
| Path root = Files.createTempDirectory("tmp"); | |
| Path htmlFolder = root.resolve("html"); | |
| Files.createDirectories(htmlFolder); | |
| Path indexFile = htmlFolder.resolve("index.html"); | |
| String content = "" | |
| + "<!doctype html>\n" | |
| + "<html lang=\"en\">\n" | |
| + "<head>\n" | |
| + " <meta charset=\"utf-8\">\n" | |
| + " <title>Docker Nginx</title>\n" | |
| + "</head>\n" | |
| + "<body>\n" | |
| + " <h2>Hello from Nginx container</h2>\n" | |
| + " <p>Created with jib</p>\n" | |
| + "</body>\n" | |
| + "</html>"; | |
| Files.write(indexFile, content.getBytes(StandardCharsets.UTF_8)); | |
| Jib.from("nginx:latest") | |
| .addLayer(Arrays.asList(htmlFolder), AbsoluteUnixPath.get("/usr/share/nginx/")) | |
| .containerize(Containerizer.to(DockerDaemonImage.named("webserver"))); | |
| } | |
| } |
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Original blog post: How To Use the Official NGINX Docker Image
How to create the image:
This is using the GoogleContainerTools/jib project to create the image.
docker imagesreturns:How to run the server (same command as in the original blog post):
Visit http://localhost:8080/, you will see the html page