Add custom armeria configuration to zipkin

add-accesslog.sh

#!/bin/sh
#
# NOTE: if you are reading this, probably you should upvote https://github.com/line/armeria/issues/1909
#

# get normal zipkin server
curl -sSL https://zipkin.io/quickstart.sh | bash -s

# Write pom.xml thats responsible for generating armeria-configurator.jar
cat << 'EOF' > pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <groupId>armeria.custom</groupId>
  <artifactId>armeria-configurator</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>jar</packaging>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <project.build.resourceEncoding>UTF-8</project.build.resourceEncoding>
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>
  </properties>

  <dependencies>
    <dependency>
      <groupId>com.linecorp.armeria</groupId>
      <artifactId>armeria-spring-boot-autoconfigure</artifactId>
      <scope>provided</scope>
      <version>0.90.0</version>
    </dependency>
  </dependencies>

  <build>
    <finalName>armeria-configurator</finalName>
  </build>
</project>
EOF

# make the auto-configuration file (in this case access logger)
mkdir -p src/main/java/armeria/server
cat << 'EOF' > src/main/java/armeria/server/ArmeriaServerConfiguratorAutoConfiguration.java
package armeria.server;

import com.linecorp.armeria.server.logging.AccessLogWriter;
import com.linecorp.armeria.spring.ArmeriaServerConfigurator;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
class ArmeriaServerConfiguratorAutoConfiguration {
  @Bean ArmeriaServerConfigurator configureAccessLogs() {
    return sb -> sb.accessLogWriter(AccessLogWriter.common(), true);
  }
}
EOF

# make the file that tells spring to autoconfigure the above
mkdir -p src/main/resources/META-INF
cat << 'EOF' > src/main/resources/META-INF/spring.factories
org.springframework.boot.autoconfigure.EnableAutoConfiguration=\
armeria.server.ArmeriaServerConfiguratorAutoConfiguration
EOF

# Build armeria-configurator jar
mvn clean package

# run with the custom configurator
java \
    -Dloader.path=target/armeria-configurator.jar \
    -cp zipkin.jar \
    org.springframework.boot.loader.PropertiesLauncher