exec: \\“mysql\\”: 在 $PATH 中找不到可执行文件": 未知

Question

I've created a container based on the mysql:5.7 image. Then I set the password with this

docker run --name mysql -v $(pwd):/src -e MYSQL_ROOT_PASSWORD=password -d mysql:5.7

Then I deployed my modules using docker-compose up -d on my docker-compose.yml file. Apparently, it raised an

exec: \\"mysql\\": executable file not found in $PATH": unknown

error and my 2 other modules also are having errors that keeps on restarting and point to mysql. I can import Python files in Django shell as well as mysql -u root -p but I cannot use the imports when it can't connect to the database.

Things I did based on my research:

1. I've set my Windows 10 environment variables to point at C:\\Program Files\\MySQL\\MySQL Server 8.0\\bin where mysql.exe resides. It still didn't work.

2. mysql-init.txt (REF: https://dev.mysql.com/doc/refman/8.0/en/resetting-permissions.html ): This runs the mysql prompt successfully.

   grant all privileges on *.* to root@localhost;

   ALTER USER 'root'@'localhost' IDENTIFIED BY 'password';

docker-compose.yml

version: '2'
services:
  # Mysql
  mysql:
    image: mysql:5.7
    restart: always
    hostname: mysql
    container_name: mysql
    environment:
      - MYSQL_USER=root
      - MYSQL_ROOT_PASSWORD=password
      - MYSQL_DB=bitpal
    ports:
      - "3306:3306"


  # Redis
  redis:
    image: redis:latest
    restart: always
    hostname: redis
    container_name: redis
    ports:
      - "6379:6379"


  # Django web server
  bitpal:
    image: python:3.5
    restart: always
    hostname: bitpal
    container_name: bitpal
    working_dir: /bitpal
    command: ./bin/start_dev.sh
    volumes:
      - ./bitpal:/bitpal
      - ./etc/config:/etc/config
      - ./log:/log
    ports:
      - "80:80"
    links:
      - mysql
      - redis
    depends_on:
      - mysql
    environment:
      # Database
      - DB_NAME=bitpal
      - DB_USER=root
      - DB_PASSWORD=password
      - DB_HOST=mysql
      - DB_PORT=3306


  # Celery worker
  worker:
    image: python:3.5
    restart: always
    container_name: worker
    command: bash -c "./bin/install.sh && ./bin/celery_worker.sh"
    working_dir: /bitpal
    volumes:
      - ./bitpal:/bitpal
      - ./etc/config:/etc/config
      - ./log:/log
    links:
      - mysql
      - redis
    depends_on:
      - redis


  # Bitshares websocket listener
  websocket_listener:
    image: python:3.5
    restart: always
    container_name: websocket_listener
    command: bash -c "./bin/install.sh && ./bin/websocket_listener.sh"
    working_dir: /bitpal
    volumes:
      - ./bitpal:/bitpal
      - ./etc/config:/etc/config
      - ./log:/log
    links:
      - mysql
      - redis
    depends_on:
      - redis


  # Nginx
  nginx:
    image: nginx:1.12.1
    container_name: nginx
    ports:
      - "8000:80"
    volumes:
      - ./bitpal:/home/bitpal/bitpal/bitpal
      - ./nginx:/etc/nginx/conf.d
    depends_on:
      - bitpal

Dockerfile

FROM python:3.5

RUN mkdir -p /bitpal

WORKDIR /bitpal
EXPOSE 80

ADD requirement.txt /bitpal/
RUN python3.5 -m pip install -r /bitpal/requirement.txt

settings.py

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.mysql',
        'NAME': 'bitpal',
        'USER': 'root',
        'PASSWORD': 'password',
        'HOST': SECRETS['db']['default']['hostname'],
        'PORT': '3306',
        'OPTIONS': {'autocommit': SECRETS['db']['default']['commit']}
    }
}

docker version

Client:
 Version:       18.03.0-ce
 API version:   1.37
 Go version:    go1.9.4
 Git commit:    0520e24
 Built: Wed Mar 21 23:06:28 2018
 OS/Arch:       windows/amd64
 Experimental:  false
 Orchestrator:  swarm

Server:
 Engine:
  Version:      18.04.0-ce
  API version:  1.37 (minimum version 1.12)
  Go version:   go1.9.4
  Git commit:   3d479c0
  Built:        Tue Apr 10 18:23:35 2018
  OS/Arch:      linux/amd64
  Experimental: false

docker info

Containers: 6
 Running: 3
 Paused: 0
 Stopped: 3
Images: 6
Server Version: 18.04.0-ce
Storage Driver: aufs
 Root Dir: /mnt/sda1/var/lib/docker/aufs
 Backing Filesystem: extfs
 Dirs: 46
 Dirperm1 Supported: true
Logging Driver: json-file
Cgroup Driver: cgroupfs
Plugins:
 Volume: local
 Network: bridge host macvlan null overlay
 Log: awslogs fluentd gcplogs gelf journald json-file logentries splunk syslog
Swarm: inactive
Runtimes: runc
Default Runtime: runc
Init Binary: docker-init
containerd version: 773c489c9c1b21a6d78b5c538cd395416ec50f88
runc version: 4fc53a81fb7c994640722ac585fa9ca548971871
init version: 949e6fa
Security Options:
 seccomp
  Profile: default
Kernel Version: 4.9.93-boot2docker
Operating System: Boot2Docker 18.04.0-ce (TCL 8.2.1); HEAD : b8a34c0 - Wed Apr 11 17:00:55 UTC 2018
OSType: linux
Architecture: x86_64
CPUs: 1
Total Memory: 995.6MiB
Name: default
ID: I7DZ:5SQN:EOBV:PJOE:YHNK:RSXK:F6EH:4J7P:LSTI:CR2M:E2MV:VI27
Docker Root Dir: /mnt/sda1/var/lib/docker
Debug Mode (client): false
Debug Mode (server): false
Registry: https://index.docker.io/v1/
Labels:
 provider=virtualbox
Experimental: false
Insecure Registries:
 127.0.0.0/8
Live Restore Enabled: false

docker inspect mysql:5.7

[
    {
        "Id": "sha256:0d16d0a97dd13a8ca0c0e205ce1f31f64d9d32048379eb322749442bff35f144",
        "RepoTags": [
            "mysql:5.7"
        ],
        "RepoDigests": [
            "mysql@sha256:f030e84582d939d313fe2ef469b5c65ffd0f7dff3b4b98e6ec9ae2dccd83dcdf"
        ],
        "Parent": "",
        "Comment": "",
        "Created": "2018-05-04T23:41:21.907294662Z",
        "Container": "7fed895363c6e67ba9d52eaea107a1267d63e2d5ad46c567926d6897c7175624",
        "ContainerConfig": {
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            "Domainname": "",
            "User": "",
            "AttachStdin": false,
            "AttachStdout": false,
            "AttachStderr": false,
            "ExposedPorts": {
                "3306/tcp": {}
            },
            "Tty": false,
            "OpenStdin": false,
            "StdinOnce": false,
            "Env": [
                "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
                "GOSU_VERSION=1.7",
                "MYSQL_MAJOR=5.7",
                "MYSQL_VERSION=5.7.22-1debian9"
            ],
            "Cmd": [
                "/bin/sh",
                "-c",
                "#(nop) ",
                "CMD [\"mysqld\"]"
            ],
            "ArgsEscaped": true,
            "Image": "sha256:71f4997ae44aead33eefe93100990253bca456f7b63dc5aad5baa936e7c14c46",
            "Volumes": {
                "/var/lib/mysql": {}
            },
            "WorkingDir": "",
            "Entrypoint": [
                "docker-entrypoint.sh"
            ],
            "OnBuild": [],
            "Labels": {}
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        "DockerVersion": "17.06.2-ce",
        "Author": "",
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            "ExposedPorts": {
                "3306/tcp": {}
            },
            "Tty": false,
            "OpenStdin": false,
            "StdinOnce": false,
            "Env": [
                "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
                "GOSU_VERSION=1.7",
                "MYSQL_MAJOR=5.7",
                "MYSQL_VERSION=5.7.22-1debian9"
            ],
            "Cmd": [
                "mysqld"
            ],
            "ArgsEscaped": true,
            "Image": "sha256:71f4997ae44aead33eefe93100990253bca456f7b63dc5aad5baa936e7c14c46",
            "Volumes": {
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            },
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        "Architecture": "amd64",
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        "VirtualSize": 371961246,
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]

Answer 1

Ok, I just got it resolved. Apparently, I forgot to create the DB and migrate the new changes. Here's how I did it.

1. Removed nginx module. My worker (celery) and websocket_listener modules are okay to keep on restarting. docker rm -f nginx
2. Ran in detached mode. docker-compose up -d mysql redis
3. Used bash under mysql container. docker exec -ti mysql bash
4. Entered credentials (I have initially set them in mysql-init.txt , REF: https://dev.mysql.com/doc/refman/8.0/en/resetting-permissions.html ) mysql -u root -p
5. Created DB. CREATE DATABASE bitpal;
6. Imported a certain .sql file that was missing in my modules.
7. Ran bitpal in detached mode. docker-compose up -d bitpal
8. Used bash under bitpal container. docker exec -ti bitpal bash
9. Migrations. python manage.py migrate
10. Used bash under mysql container. docker exec -ti mysql bash
11. Lastly, ran the sql under bitpal container. mysql -u root -p bitpal < <.sql file>
12. And it worked.

Answer 2

Here is the best option for the above issue. I did a lot of search for the same issue:

sudo apt-get install --reinstall mariadb-server
sudo apt-get install --reinstall php-mysql

service mysql status

service mysql start