The issue here is that you haven&#39;t actually created the containers. You will have to create these containers before running them. You could use the `docker-compose up` instead, that will create the containers and then start them. 

Or you could run `docker-compose create` to create the containers and then run the `docker-compose start` to start them.

The reason why you saw the error is that `docker-compose start` and `docker-compose restart` assume that the containers already exist.

If you want to build and start containers, use

    docker-compose up

If you only want to build the containers, use

    docker-compose up --no-start

Afterwards, `docker-compose {start,restart,stop}` should work as expected.


There used to be a `docker-compose create` command, but it is now deprecated in favor of `docker-compose up --no-start`.

I am trying to build a simple blog with Angular 2 and Firebase and I am having issues using async pipe in a component. I get the error in the console.

&gt; zone.js:344Unhandled Promise rejection: Template parse errors:
&gt; The pipe &#39;async&#39; could not be found (&quot;
&gt; &lt;/p&gt;
&gt;
&gt; &lt;p&gt;[ERROR -&gt;]{{ (blog.user | async)?.first_name }}&lt;/p&gt;
&gt;
&gt; &quot;): BlogComponent@6:3 ; Zone: &lt;root&gt; ; Task: Promise.then ; Value: Error: Template parse errors:(…) Error: Template parse errors:
&gt; The pipe &#39;async&#39; could not be found (&quot;
&gt; &lt;/p&gt;

blog.component.ts

&lt;!-- language: lang-ts --&gt;

    import {Component, Input} from &quot;@angular/core&quot;;
    
    @Component({
      selector: &#39;blog-component&#39;,
      templateUrl: &#39;./blog.component.html&#39;,
      styleUrls: [&#39;./blog.component.css&#39;],
    })
    
    export class BlogComponent {
      @Input() blog;
    }

blog.component.html

&lt;!-- language: lang-html --&gt;

    &lt;h1 class=&quot;article-title&quot;&gt;{{ blog.title }}&lt;/h1&gt;
    &lt;p&gt;{{ (blog.user | async)?.first_name }}&lt;/p&gt;

app.component.ts

&lt;!-- language: lang-ts --&gt;

    import { Component } from &#39;@angular/core&#39;;
    import { BlogService } from &quot;./services/services.module&quot;;
    
    @Component({
      selector: &#39;app-root&#39;,
      templateUrl: &#39;./app.component.html&#39;,
      styleUrls: [&#39;./app.component.css&#39;]
    })
    
    export class AppComponent {
      constructor(private blogService: BlogService) {}
      articles = this.blogService.getAllArticles();
    }

app.component.html

&lt;!-- language: lang-html --&gt;

    &lt;article *ngFor=&quot;let article of articles | async&quot;&gt;
      &lt;blog-component [blog]=&quot;article&quot;&gt;&lt;/blog-component&gt;
    &lt;/article&gt;

blog.service.ts

&lt;!-- language: lang-ts --&gt;

    import {Injectable} from &quot;@angular/core&quot;;
    import {AngularFire} from &quot;angularfire2&quot;;
    import {Observable} from &quot;rxjs&quot;;
    import &quot;rxjs/add/operator/map&quot;;
    
    @Injectable()
    export class BlogService {
      constructor(private af: AngularFire) { }
    
      getAllArticles(): Observable&lt;any[]&gt; {
        return this.af.database.list(&#39;articles&#39;, {
          query: {
            orderByKey: true,
            limitToLast: 10
          }
        }).map((articles) =&gt; {
          return articles.map((article) =&gt; {
            article.user = this.af.database.object(`/users/${article.user_id}`);
            return article;
          });
        });
      }
    }

The problem arises only when I try to use async in blog.component.html file. It works if I try to print the user name in app.component.html file. Should I be injecting AsyncPipe in blog.module.ts? How can I get the async working in blog.component.ts?

The pipe &#39;async&#39; could not be found

I&#39;ve got an app that we&#39;ve submitted dozends of versions to in the last 6 months and we do use APNS. I got the following email from Apple after upgrading to Xcode 8

&gt; Dear developer,
&gt; 
&gt; We have discovered one or more issues with your recent delivery for
&gt; APP_NAME. Your delivery was
&gt; successful, but you may wish to correct the following issues in your
&gt; next delivery:
&gt; 
&gt; Missing Push Notification Entitlement - Your app includes an API for
&gt; Apple&#39;s Push Notification service, but the aps-environment entitlement
&gt; is missing from the app&#39;s signature. To resolve this, make sure your
&gt; App ID is enabled for push notification in the Provisioning Portal.
&gt; Then, sign your app with a distribution provisioning profile that
&gt; includes the aps-environment entitlement. This will create the correct
&gt; signature, and you can resubmit your app. See &quot;Provisioning and
&gt; Development&quot; in the Local and Push Notification Programming Guide for
&gt; more information. If your app does not use the Apple Push Notification
&gt; service, no action is required. You may remove the API from future
&gt; submissions to stop this warning. If you use a third-party framework,
&gt; you may need to contact the developer for information on removing the
&gt; API.
&gt; 
&gt; After you’ve corrected the issues, you can use Xcode or Application
&gt; Loader to upload a new binary to iTunes Connect.
&gt; 
&gt; Regards,
&gt; 
&gt; The App Store team

What is weird is I went to *developer.apple.com* -&gt; *Certificates, Identifiers &amp; Profiles* and my AppId does have Push Notifications enabled still. I&#39;m not doing anything different then I&#39;ve ever done on it so am curious if the Xcode 8 update broke something. Any ideas? 

BTW: The link they put for the Push Notification Programming Guide was broken in the email, so that&#39;s not a good sign.

Xcode 8 &quot;the aps-environment entitlement is missing from the app&#39;s signature&quot; on submit

I am trying to use Docker Compose (with Docker Machine on Windows) to launch a group of Docker containers. 

My docker-compose.yml:

    version: &#39;2&#39;
    services:
      postgres:
        build: ./postgres
        environment:
          - POSTGRES_PASSWORD=mysecretpassword
      frontend:
        build: ./frontend
        ports:
          - &quot;4567:4567&quot;
        depends_on:
          - postgres
      backend:
        build: ./backend
        ports:
           - &quot;5000:5000&quot;
        depends_on:
           - postgres

`docker-compose build` runs successfully. When I run `docker-compose start` I get the following output:

    Starting postgres ... done
    Starting frontend ... done
    Starting backend ... done
    ERROR: No containers to start

I did confirm that the docker containers are not running. How do I get my containers to start?


docker-compose start &quot;ERROR: No containers to start&quot;

I am trying to use Docker Compose (with Docker Machine on Windows) to launch a group of Docker containers.
My docker-compose.yml:
<pre><code class="hljs language-yaml">version: '2'
services:
 postgres:
 build: ./postgres
 environment:
 - POSTGRES_PASSWORD=mysecretpassword
 frontend:
 build: ./frontend
 ports:
 - "4567:4567"
 depends_on:
 - postgres
 backend:
 build: ./backend
 ports:
 - "5000:5000"
 depends_on:
 - postgres
</code></pre>
<code>docker-compose build</code> runs successfully. When I run <code>docker-compose start</code> I get the following output:
<pre><code class="hljs language-bash">Starting postgres ... done
Starting frontend ... done
Starting backend ... done
ERROR: No containers to start
</code></pre>
I did confirm that the docker containers are not running. How do I get my containers to start?

I&#39;m trying to set environment variables in docker container during the build but without success. Setting them when using run command works but I need to set them during the build.

Dockerfile

    FROM ubuntu:latest
    ARG TEST_ENV=something

Command I&#39;m using to build

    docker build -t --build-arg TEST_ENV=&quot;test&quot; myimage .

Running

    docker run -dit myimage

I&#39;m checking available environment variables by using

    docker exec containerid printenv

and the result is

    PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
    HOSTNAME=e49c1abfd58b
    TERM=xterm
    no_proxy=*.local, 169.254/16
    HOME=/root

TEST_ENV is not present

How do I set environment variables during the build in docker

I have a few Dockerfiles right now.

One is for Cassandra 3.5, and it is `FROM cassandra:3.5`

I also have a Dockerfile for Kafka, but t is quite a bit more complex. It is `FROM java:openjdk-8-fre` and it runs a long command to install Kafka and Zookeeper.

Finally, I have an application written in Scala that uses SBT. 

For that Dockerfile, it is `FROM broadinstitute/scala-baseimage`, which gets me Java 8, Scala 2.11.7, and STB 0.13.9, which are what I need.

Perhaps, I don&#39;t understand how Docker works, but my Scala program has Cassandra and Kafka as dependencies and for development purposes, I want others to be able to simply clone my repo with the `Dockerfile` and then be able to build it with Cassandra, Kafka, Scala, Java and SBT all baked in so that they can just compile the source. I&#39;m having a lot of issues with this though. 

How do I combine these Dockerfiles? How do I simply make an environment with those things baked in?

Is there a way to combine Docker images into 1 container?

I am a complete Docker novice but am having to maintain an existing system. The Dockerfile I am using is as below:

    FROM php:5.6-apache

    RUN docker-php-ext-install mysql mysqli
    
    RUN apt-get update -y &amp;&amp; apt-get install -y sendmail
    
    RUN apt-get update &amp;&amp; \
        apt-get install -y \
            zlib1g-dev 
    
    RUN docker-php-ext-install mbstring
    
    RUN docker-php-ext-install zip
    
    RUN docker-php-ext-install gd

When I run &#39;docker build [sitename]&#39; everything seems ok until I get the error:

    configure: error: png.h not found.
    The command &#39;/bin/sh -c docker-php-ext-install gd&#39; returned a non-zero code: 1

What is the cause of this error?

Installing GD in Docker

I need to start multiple containers for the same image. If i create my compose file as shown below, it works fine. 

    version: &#39;2&#39;
    
    services:
      app01:
        image: app
      app02:
        image: app
      app03:
        image: app
      app04:
        image: app
      app05:
        image: app	

Is there any easy way for me to mention the number of instances for the compose instead of copy and pasting multiple times?


docker-compose creating multiple instances for the same image

I launch a docker container from an image with the following command:

    $ docker run -d myimage /bin/bash -c &quot;mycommand&quot;

When `&quot;mycommand&quot;` is finished, the container is stopped (I suppose it is stopped), but it is not deleted, because I can see it with this command:

    $ docker ps -a

Is there any way to `restart` this container with the same parameters and keep data generated by `mycommand`?


How restart a stopped docker container

I have a `.gitlab-ci.yml` file which contains following:

&lt;!-- language: lang-yaml --&gt;

    image: docker:latest
    
    services:
      - docker:dind
    
    before_script:
      - docker info
      - docker-compose --version
    
    buildJob:
      stage: build
      tags:
        - docker
      script:
        - docker-compose build

But in `ci-log` I receive message:

&lt;!-- language: lang-bash

    $ docker-compose --version
    /bin/sh: eval: line 46: docker-compose: not found

What am I doing wrong?

Run docker-compose build in .gitlab-ci.yml

I couldn&#39;t figure out what the difference between those.

- `docker-compose up` 

- `docker-compose up --build`

- `docker-compose build --no-cache`

Is there any command for `up`without cache?


docker-compose up vs docker-compose up --build vs docker-compose build --no-cache

I&#39;m using Docker to create a container to test my web app built on PHP and MySQL on my Mac.  My PHP app is built using Fat-Free Framework for MVC and routing.  I have two Dockerfiles, one for MySQL and one for PHP.  I&#39;ve used test Docker applications successfully, so I believe my images are installed correctly.

The main part of the error:

    Internal Server Error
    
    SQLSTATE[HY000] [2002] No such file or directory
    
    [fatfree/lib/DB/SQL.php:466] PDO-&gt;__construct(&#39;mysql:host=127.0.0.1;port=3306;dbname=robohome&#39;,&#39;root&#39;,&#39;password&#39;,array(1002=&gt;&#39;SET NAMES utf8;&#39;))
    [fatfree/app/Controllers/Controller.php:24] DB\SQL-&gt;__construct(&#39;mysql:host=127.0.0.1;port=3306;dbname=robohome&#39;,&#39;root&#39;,&#39;password&#39;)

Note, if I connect using `127.0.0.1` instead of `localhost` I get a slightly different error that says: `SQLSTATE[HY000] [2002] Connection refused`

My PHP Dockerfile:

    FROM php:5.6-apache
    
    RUN docker-php-ext-install mysqli pdo pdo_mysql
    RUN a2enmod rewrite

My MySQL Dockerfile:

    FROM mysql:5.7
    
    ENV MYSQL_ROOT_PASSWORD password
    ENV MYSQL_DATABASE robohome
    
    COPY ./schema.sql /docker-entrypoint-initdb.d/

My `Controller.php` file where the error mentions line 24:

    &lt;?php
    
    namespace Controllers;
    
    class Controller
    {
        protected $f3;
        protected $db;
    
        public function __construct()
        {
            $f3 = \Base::instance();
            $this-&gt;f3 = $f3;
    
            $mysqlServerName = $f3-&gt;get(&quot;MYSQL_SERVERNAME&quot;);
            $mysqlDatabseName = $f3-&gt;get(&quot;MYSQL_DBNAME&quot;);
    
            //$container = \DI\ContainerBuilder::buildDevContainer(); &lt;-Not used currently
    
            //Below is line 24 referred to in the error
            $db = new \DB\SQL(
                &quot;mysql:host={$mysqlServerName};port=3306;dbname={$mysqlDatabseName}&quot;,
                $f3-&gt;get(&quot;MYSQL_USERNAME&quot;),
                $f3-&gt;get(&quot;MYSQL_PASSWORD&quot;)
            );
    
            $this-&gt;db = $db;
        }

Those `MYSQL_*` values are pulled from an `.ini` file:

    MYSQL_SERVERNAME = &quot;localhost&quot; &lt;-This is what I&#39;ve tried changing to 127.0.0.1
    MYSQL_USERNAME = &quot;root&quot;
    MYSQL_PASSWORD = &quot;password&quot;
    MYSQL_DBNAME = &quot;robohome&quot;

My Docker compose file:

    version: &#39;2&#39;
    
    services:
      web:
        build: ./docker/php
        ports:
          - 80:80
        volumes:
          - .:/var/www/html/
        links:
          - db
      db:
        build: ./docker/mysql
        ports:
          - 3306

I run this by doing `docker-compose up --build -d`.  The output I can then get from `docker ps` is:

    CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                     NAMES
    f35066a16586        robohomeweb_mysql   &quot;docker-entrypoint.sh&quot;   3 minutes ago       Up 2 seconds        0.0.0.0:32777-&gt;3306/tcp   robohomeweb_mysql_1
    86d34eb34583        robohomeweb_php     &quot;apache2-foreground&quot;     3 minutes ago       Up 2 seconds        0.0.0.0:80-&gt;80/tcp        robohomeweb_php_1

If I run in the foreground instead, I get the following output:

    Building php
    Step 1 : FROM php:5.6-apache
     ---&gt; 8f9b7e57129a
    Step 2 : RUN docker-php-ext-install mysqli pdo pdo_mysql
     ---&gt; Using cache
     ---&gt; fadd8f9e7207
    Step 3 : RUN a2enmod rewrite
     ---&gt; Using cache
     ---&gt; 9dfed7fdc60f
    Successfully built 9dfed7fdc60f
    Building mysql
    Step 1 : FROM mysql:5.7
     ---&gt; eda6a4884645
    Step 2 : ENV MYSQL_ROOT_PASSWORD password
     ---&gt; Using cache
     ---&gt; 759895ac5772
    Step 3 : ENV MYSQL_DATABASE robohome
     ---&gt; Using cache
     ---&gt; e926c5ecc088
    Step 4 : COPY ./schema.sql /docker-entrypoint-initdb.d/
     ---&gt; Using cache
     ---&gt; cf5d00aa8020
    Successfully built cf5d00aa8020
    Starting robohomeweb_php_1
    Starting robohomeweb_mysql_1
    Attaching to robohomeweb_mysql_1, robohomeweb_php_1
    php_1    | AH00558: apache2: Could not reliably determine the server&#39;s fully qualified domain name, using 172.18.0.3. Set the &#39;ServerName&#39; directive globally to suppress this message
    php_1    | AH00558: apache2: Could not reliably determine the server&#39;s fully qualified domain name, using 172.18.0.3. Set the &#39;ServerName&#39; directive globally to suppress this message
    php_1    | [Sun Oct 16 20:21:17.944575 2016] [mpm_prefork:notice] [pid 1] AH00163: Apache/2.4.10 (Debian) PHP/5.6.26 configured -- resuming normal operations
    php_1    | [Sun Oct 16 20:21:17.946919 2016] [core:notice] [pid 1] AH00094: Command line: &#39;apache2 -D FOREGROUND&#39;
    mysql_1  | 2016-10-16T20:21:18.036272Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
    mysql_1  | 2016-10-16T20:21:18.038330Z 0 [Note] mysqld (mysqld 5.7.16) starting as process 1 ...
    mysql_1  | 2016-10-16T20:21:18.043331Z 0 [Note] InnoDB: PUNCH HOLE support available
    mysql_1  | 2016-10-16T20:21:18.043603Z 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
    mysql_1  | 2016-10-16T20:21:18.043951Z 0 [Note] InnoDB: Uses event mutexes
    mysql_1  | 2016-10-16T20:21:18.044077Z 0 [Note] InnoDB: GCC builtin __atomic_thread_fence() is used for memory barrier
    mysql_1  | 2016-10-16T20:21:18.044260Z 0 [Note] InnoDB: Compressed tables use zlib 1.2.3
    mysql_1  | 2016-10-16T20:21:18.044414Z 0 [Note] InnoDB: Using Linux native AIO
    mysql_1  | 2016-10-16T20:21:18.045150Z 0 [Note] InnoDB: Number of pools: 1
    mysql_1  | 2016-10-16T20:21:18.045620Z 0 [Note] InnoDB: Using CPU crc32 instructions
    mysql_1  | 2016-10-16T20:21:18.047629Z 0 [Note] InnoDB: Initializing buffer pool, total size = 128M, instances = 1, chunk size = 128M
    mysql_1  | 2016-10-16T20:21:18.057705Z 0 [Note] InnoDB: Completed initialization of buffer pool
    mysql_1  | 2016-10-16T20:21:18.059988Z 0 [Note] InnoDB: If the mysqld execution user is authorized, page cleaner thread priority can be changed. See the man page of setpriority().
    mysql_1  | 2016-10-16T20:21:18.074670Z 0 [Note] InnoDB: Highest supported file format is Barracuda.
    mysql_1  | 2016-10-16T20:21:18.101209Z 0 [Note] InnoDB: Creating shared tablespace for temporary tables
    mysql_1  | 2016-10-16T20:21:18.101433Z 0 [Note] InnoDB: Setting file &#39;./ibtmp1&#39; size to 12 MB. Physically writing the file full; Please wait ...
    mysql_1  | 2016-10-16T20:21:18.354806Z 0 [Note] InnoDB: File &#39;./ibtmp1&#39; size is now 12 MB.
    mysql_1  | 2016-10-16T20:21:18.356928Z 0 [Note] InnoDB: 96 redo rollback segment(s) found. 96 redo rollback segment(s) are active.
    mysql_1  | 2016-10-16T20:21:18.357158Z 0 [Note] InnoDB: 32 non-redo rollback segment(s) are active.
    mysql_1  | 2016-10-16T20:21:18.358049Z 0 [Note] InnoDB: Waiting for purge to start
    mysql_1  | 2016-10-16T20:21:18.412987Z 0 [Note] InnoDB: 5.7.16 started; log sequence number 12179647
    mysql_1  | 2016-10-16T20:21:18.414470Z 0 [Note] Plugin &#39;FEDERATED&#39; is disabled.
    mysql_1  | 2016-10-16T20:21:18.421833Z 0 [Note] InnoDB: Loading buffer pool(s) from /var/lib/mysql/ib_buffer_pool
    mysql_1  | 2016-10-16T20:21:18.424144Z 0 [Note] InnoDB: Buffer pool(s) load completed at 161016 20:21:18
    mysql_1  | 2016-10-16T20:21:18.425607Z 0 [Warning] Failed to set up SSL because of the following SSL library error: SSL context is not usable without certificate and private key
    mysql_1  | 2016-10-16T20:21:18.427018Z 0 [Note] Server hostname (bind-address): &#39;*&#39;; port: 3306
    mysql_1  | 2016-10-16T20:21:18.427581Z 0 [Note] IPv6 is available.
    mysql_1  | 2016-10-16T20:21:18.427749Z 0 [Note]   - &#39;::&#39; resolves to &#39;::&#39;;
    mysql_1  | 2016-10-16T20:21:18.428019Z 0 [Note] Server socket created on IP: &#39;::&#39;.
    mysql_1  | 2016-10-16T20:21:18.456023Z 0 [Warning] &#39;db&#39; entry &#39;sys mysql.sys@localhost&#39; ignored in --skip-name-resolve mode.
    mysql_1  | 2016-10-16T20:21:18.456354Z 0 [Warning] &#39;proxies_priv&#39; entry &#39;@ root@localhost&#39; ignored in --skip-name-resolve mode.
    mysql_1  | 2016-10-16T20:21:18.480237Z 0 [Warning] &#39;tables_priv&#39; entry &#39;sys_config mysql.sys@localhost&#39; ignored in --skip-name-resolve mode.
    mysql_1  | 2016-10-16T20:21:18.488758Z 0 [Note] Event Scheduler: Loaded 0 events
    mysql_1  | 2016-10-16T20:21:18.490880Z 0 [Note] mysqld: ready for connections.
    mysql_1  | Version: &#39;5.7.16&#39;  socket: &#39;/var/run/mysqld/mysqld.sock&#39;  port: 3306  MySQL Community Server (GPL)

From my research, I&#39;ve tried connecting using both `localhost` and `127.0.0.1` since they&#39;re technically treated differently.  It could also be something related to trying to talk via sockets instead of TCP.  Ideally I would like a solution that I can bake into my Dockerfiles so I don&#39;t have to worry about remembering commands or how I did something.

Using Docker I get the error: &quot;SQLSTATE[HY000] [2002] No such file or directory&quot;

I am getting error on ubuntu 16.04

&gt; &quot;ERROR: Couldn&#39;t connect to Docker daemon - you might need to run
&gt; `docker-    machine start default`. &quot;

 when i run following command
 

    sudo docker-compose up

Can any one answer ?

Content Type	Original Author	Original Content on Stackoverflow
Question	Prichmp	View Question on Stackoverflow
Solution 1 - Docker	JesusTinoco	View Answer on Stackoverflow
Solution 2 - Docker	Philipp Claßen	View Answer on Stackoverflow

docker-compose start "ERROR: No containers to start"

Docker Problem Overview

Docker Solutions

Solution 1 - Docker

Solution 2 - Docker

Xcode 8 "the aps-environment entitlement is missing from the app's signature" on submit

The pipe 'async' could not be found

Attributions