An HTTPS URI for DOCKER_HOST must be provided to use Docker client certificates

[serragnoli]

Hi.

We tried to move from 'docker-maven-plugin' to this one. But we can't build the image on 'OS X El Captain"

For the examples below we are always running

mvn clean verify -P docker

Our first two attempts were with

export DOCKER_HOST=tcp://localhost:2375

and

export DOCKER_HOST=https://localhost:2375

which yielded

[ERROR] Failed to execute goal com.spotify:dockerfile-maven-plugin:1.3.3:build (default) on project my-api: Could not build image: java.util.concurrent.ExecutionException: com.spotify.docker.client.shaded.javax.ws.rs.ProcessingException: org.apache.http.conn.HttpHostConnectException: Connect to localhost:2375 [localhost/127.0.0.1, localhost/0:0:0:0:0:0:0:1] failed: Connection refused -> [Help 1]

Then we tried

export DOCKER_HOST=unix:///var/run/docker.sock

which gave us

[ERROR] Failed to execute goal com.spotify:dockerfile-maven-plugin:1.3.3:build (default) on project my-api: Execution default of goal com.spotify:dockerfile-maven-plugin:1.3.3:build failed: An HTTPS URI for DOCKER_HOST must be provided to use Docker client certificates -> [Help 1]

We can't find any docs on how to get it working.

My pom.xml for reference

<?xml version="1.0" encoding="UTF-8"?>
<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>

    <parent>
        <groupId>my.package</groupId>
        <artifactId>myapp</artifactId>
        <version>1.0-SNAPSHOT</version>
    </parent>

    <artifactId>myapi</artifactId>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <scala.version>2.12.2</scala.version>
        <scala-maven-plugin.version>3.2.2</scala-maven-plugin.version>
        <logback.version>1.2.3</logback.version>
        <akka.version>10.0.9</akka.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.scala-lang</groupId>
            <artifactId>scala-library</artifactId>
            <version>${scala.version}</version>
        </dependency>
        <dependency>
            <groupId>com.typesafe.akka</groupId>
            <artifactId>akka-http_2.12</artifactId>
            <version>${akka.version}</version>
        </dependency>
        <dependency>
            <groupId>com.typesafe.akka</groupId>
            <artifactId>akka-http-spray-json_2.12</artifactId>
            <version>${akka.version}</version>
        </dependency>

        <!-- Logging -->
        <dependency>
            <groupId>ch.qos.logback</groupId>
            <artifactId>logback-classic</artifactId>
            <version>${logback.version}</version>
        </dependency>
        <dependency>
            <groupId>com.typesafe.scala-logging</groupId>
            <artifactId>scala-logging_2.12</artifactId>
            <version>3.7.1</version>
        </dependency>
        <dependency>
            <groupId>net.logstash.logback</groupId>
            <artifactId>logstash-logback-encoder</artifactId>
            <version>4.11</version>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>net.alchim31.maven</groupId>
                <artifactId>scala-maven-plugin</artifactId>
                <version>${scala-maven-plugin.version}</version>
                <executions>
                    <execution>
                        <goals>
                            <goal>compile</goal>
                            <goal>testCompile</goal>
                        </goals>
                    </execution>
                </executions>
                <configuration>
                    <scalaVersion>${scala.version}</scalaVersion>
                    <scalaCompatVersion>2.12</scalaCompatVersion>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-shade-plugin</artifactId>
                <version>3.0.0</version>
                <configuration>
                    <dependencyReducedPomLocation>${project.build.directory}/dependency-reduced-pom.xml
                    </dependencyReducedPomLocation>
                    <transformers>
                        <transformer
                                implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                            <mainClass>my.package.MainApi</mainClass>
                        </transformer>
                        <transformer
                                implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
                            <resource>reference.conf</resource>
                        </transformer>
                    </transformers>
                </configuration>
                <executions>
                    <execution>
                        <phase>package</phase>
                        <goals>
                            <goal>shade</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

    <profiles>
        <profile>
            <id>docker</id>
            <build>
                <resources>
                    <resource>
                        <directory>src/main/resources</directory>
                    </resource>
                    <resource>
                        <directory>${project.basedir}/docker</directory>
                        <targetPath>${project.build.directory}</targetPath>
                        <includes>
                            <include>Dockerfile</include>
                        </includes>
                    </resource>
                </resources>
                <plugins>
                    <plugin>
                        <groupId>com.spotify</groupId>
                        <artifactId>dockerfile-maven-plugin</artifactId>
                        <version>1.3.3</version>
                        <executions>
                            <execution>
                                <id>default</id>
                                <goals>
                                    <goal>build</goal>
                                    <goal>push</goal>
                                </goals>
                            </execution>
                        </executions>
                    </plugin>
                </plugins>
            </build>
        </profile>
    </profiles>
</project>

[serragnoli]

This issue is only caused by the presence of certs in ~/.docker.

I followed a workaround suggested in this issue to get back on track in the meantime.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[natrob]

Has anybody found a solution to this? Thanks