CODEWITHSUNDEEP
spring-boot
Vitalii
Vitalii

Reputation: 481

How to change docker image built with spring-boot-maven-plugin env from POSIX to C.UTF-8 out of box

When I build image and check locale from container

mvn spring-boot:build-image
docker run myimage
docker exec -it <id> locale

I got

LANG=
LANGUAGE=
LC_CTYPE="POSIX"
LC_NUMERIC="POSIX"
LC_TIME="POSIX"
LC_COLLATE="POSIX"
LC_MONETARY="POSIX"
LC_MESSAGES="POSIX"
LC_PAPER="POSIX"
LC_NAME="POSIX"
LC_ADDRESS="POSIX"
LC_TELEPHONE="POSIX"
LC_MEASUREMENT="POSIX"
LC_IDENTIFICATION="POSIX"
LC_ALL=

My app fails on non ASCII string

java.nio.file.InvalidPathException: Malformed input or input contains unmappable characters: ...
at java.base/sun.nio.fs.UnixPath.encode(Unknown Source)
at java.base/sun.nio.fs.UnixPath.(Unknown Source)
at java.base/sun.nio.fs.UnixFileSystem.getPath(Unknown Source)
at java.base/java.nio.file.Path.resolve(Unknown Source)

UTF-8 charset fixes error

docker run -e LANG=C.UTF-8 myimage

I want to add LANG env default value to image. How can I do that?

Upvotes: 3

Views: 770

Answers (1)

Vitalii
Vitalii

Reputation: 481

Configuration

<plugin>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-maven-plugin</artifactId>
    <configuration>
        <image>
            <env>
                <BPE_LANG>C.UTF-8</BPE_LANG>
            </env>
        </image>
    </configuration>
</plugin>

fixes the problem despite of docker exec -it <id> locale shows POSIX.

This is scottfrederick advice. I can’t thank you enough!

Upvotes: 1

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