mysql源命令在docker容器中什么都不做

Question

Description

I'm running docker container with mysql in it and I want to run python script after mysql started, which will apply dump on it.

Here is a snippet of Dockerfile :

FROM mysql:5.6

RUN apt-get update && \
    apt-get install -y python

ADD apply_dump.py /usr/local/bin/apply_dump.py
ADD starter.sh /usr/local/bin/starter.sh

CMD ["/usr/local/bin/starter.sh"]

starter.sh :

nohup python '/usr/local/bin/apply_dump.py' &
mysqld

apply_dump.py :

import os
import urllib
import gzip
import shutil
import subprocess
import time
import logging
import sys

# wait for mysql server
time.sleep(5)
print "Start dumping"

dumpName = "ggg.sql"
dumpGzFile = dumpName + ".gz"
dumpSqlFile = dumpName + ".sql"

print "Loading dump {}...".format(dumpGzFile)
urllib.urlretrieve('ftp://ftpUser:ftpPassword@ftpHost/' + dumpGzFile, '/tmp/' + dumpGzFile)

print "Extracting dump..."
with gzip.open('/tmp/' + dumpGzFile, 'rb') as f_in:
    with open('/tmp/' + dumpSqlFile, 'wb') as f_out:
        shutil.copyfileobj(f_in, f_out)

        print "Dropping database..."
        subprocess.call(["mysql", "-u", "root", "-proot", "-e", "drop database if exists test_db"])

        print "Creating database..."
        subprocess.call(["mysql", "-u", "root", "-proot", "-e", "create schema test_db"])

        print "Applying dump..."
        subprocess.call(["mysql", "--user=root", "--password=root", "test_db", "-e" "source /tmp/{}".format(dumpSqlFile)])
        print "Done"

content of ggg.sql.gz is pretty simple:

CREATE TABLE test_table (id INT NOT NULL,PRIMARY KEY (id));

Problem

Database created, but table is not. If I'll go to container and will run this script manually, table will be created. If I'll replace source command with direct sql create statement that will work as well. But in reality dump file will be pretty big and only source command will cope with this (or not only it?). Am I doing something wrong?

Thanks in advance.

Answer 1

Try passing your source SQL file into the MySQL command like this, instead of using the -e flag:

subprocess.call(["mysql", "--user=root", "--password=root", "test_db", "<", "/tmp/%s" % dumpSqlFile])

This will call import your SQL file using the widely used syntax:

mysql --user=root --password=root test_db < /tmp/source.sql