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mysql / 5.6 / run.sh

931e531 on Jan 26

lexicalunit Improvements to shell and Dockerfile scripts.

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      executable file
      
      191 lines (168 sloc)
      
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1	#!/bin/bash
2
3	set -m
4	set -e
5
6	VOLUME_HOME="/var/lib/mysql"
7	CONF_FILE="/etc/mysql/conf.d/my.cnf"
8	LOG="/var/log/mysql/error.log"
9
10	# Set permission of config file
11	chmod 644 ${CONF_FILE}
12	chmod 644 /etc/mysql/conf.d/mysqld_charset.cnf
13
14	StartMySQL ()
15	{
16	/usr/bin/mysqld_safe ${EXTRA_OPTS} > /dev/null 2>&1 &
17	# Time out in 1 minute
18	LOOP_LIMIT=60
19	for (( i=0 ; ; i++ )); do
20	if [ ${i} -eq ${LOOP_LIMIT} ]; then
21	echo "Time out. Error log is shown as below:"
22	tail -n 100 ${LOG}
23	exit 1
24	fi
25	echo "=> Waiting for confirmation of MySQL service startup, trying ${i}/${LOOP_LIMIT} ..."
26	sleep 1
27	mysql -uroot -e "status" > /dev/null 2>&1 && break
28	done
29	}
30
31	CreateMySQLUser()
32	{
33	if [ "$MYSQL_PASS" = "Random" ]; then
34	unset MYSQL_PASS
35	fi
36
37	PASS=${MYSQL_PASS:-$(pwgen -s 12 1)}
38	_word=$( [ ${MYSQL_PASS} ] && echo "preset" \|\| echo "random" )
39	echo "=> Creating MySQL user ${MYSQL_USER} with ${_word} password"
40
41	mysql -uroot -e "CREATE USER '${MYSQL_USER}'@'%' IDENTIFIED BY '$PASS'"
42	mysql -uroot -e "GRANT ALL PRIVILEGES ON . TO '${MYSQL_USER}'@'%' WITH GRANT OPTION"
43	echo "=> Done!"
44	echo "========================================================================"
45	echo "You can now connect to this MySQL Server using:"
46	echo ""
47	echo " mysql -u$MYSQL_USER -p$PASS -h<host> -P<port>"
48	echo ""
49	echo "Please remember to change the above password as soon as possible!"
50	echo "MySQL user 'root' has no password but only allows local connections"
51	echo "========================================================================"
52	}
53
54	OnCreateDB()
55	{
56	if [ "$ON_CREATE_DB" = "False" ]; then
57	unset ON_CREATE_DB
58	else
59	echo "Creating MySQL database ${ON_CREATE_DB}"
60	mysql -uroot -e "CREATE DATABASE IF NOT EXISTS ${ON_CREATE_DB};"
61	echo "Database created!"
62	fi
63	}
64
65	ImportSql()
66	{
67	for FILE in ${STARTUP_SQL}; do
68	echo "=> Importing SQL file ${FILE}"
69	if [ "$ON_CREATE_DB" ]; then
70	mysql -uroot "$ON_CREATE_DB" < "${FILE}"
71	else
72	mysql -uroot < "${FILE}"
73	fi
74	done
75	}
76
77	# Main
78	if [ ${REPLICATION_MASTER} == "False" ]; then
79	unset REPLICATION_MASTER
80	fi
81
82	if [ ${REPLICATION_SLAVE} == "False" ]; then
83	unset REPLICATION_SLAVE
84	fi
85
86	# Initialize empty data volume and create MySQL user
87	if [[ ! -d $VOLUME_HOME/mysql ]]; then
88	echo "=> An empty or uninitialized MySQL volume is detected in $VOLUME_HOME"
89	echo "=> Installing MySQL ..."
90	if [ ! -f /usr/share/mysql/my-default.cnf ] ; then
91	cp /etc/mysql/my.cnf /usr/share/mysql/my-default.cnf
92	fi
93	mysql_install_db \|\| exit 1
94	touch /var/lib/mysql/.EMPTY_DB
95	echo "=> Done!"
96	else
97	echo "=> Using an existing volume of MySQL"
98	fi
99
100	# Set MySQL REPLICATION - MASTER
101	if [ -n "${REPLICATION_MASTER}" ]; then
102	echo "=> Configuring MySQL replication as master (1/2) ..."
103	if [ ! -f /replication_set.1 ]; then
104	RAND="$(date +%s \| rev \| cut -c 1-2)$(echo ${RANDOM})"
105	echo "=> Writting configuration file '${CONF_FILE}' with server-id=${RAND}"
106	sed -i "s/^#server-id.*/server-id = ${RAND}/" ${CONF_FILE}
107	sed -i "s/^#log-bin.*/log-bin = mysql-bin/" ${CONF_FILE}
108	touch /replication_set.1
109	else
110	echo "=> MySQL replication master already configured, skip"
111	fi
112	fi
113
114	# Set MySQL REPLICATION - SLAVE
115	if [ -n "${REPLICATION_SLAVE}" ]; then
116	echo "=> Configuring MySQL replication as slave (1/2) ..."
117	if [ -n "${MYSQL_PORT_3306_TCP_ADDR}" ] && [ -n "${MYSQL_PORT_3306_TCP_PORT}" ]; then
118	if [ ! -f /replication_set.1 ]; then
119	RAND="$(date +%s \| rev \| cut -c 1-2)$(echo ${RANDOM})"
120	echo "=> Writting configuration file '${CONF_FILE}' with server-id=${RAND}"
121	sed -i "s/^#server-id.*/server-id = ${RAND}/" ${CONF_FILE}
122	sed -i "s/^#log-bin.*/log-bin = mysql-bin/" ${CONF_FILE}
123	touch /replication_set.1
124	else
125	echo "=> MySQL replication slave already configured, skip"
126	fi
127	else
128	echo "=> Cannot configure slave, please link it to another MySQL container with alias as 'mysql'"
129	exit 1
130	fi
131	fi
132
133
134	echo "=> Starting MySQL ..."
135	StartMySQL
136	tail -F $LOG &
137
138	# Create admin user and pre create database
139	if [ -f /var/lib/mysql/.EMPTY_DB ]; then
140	echo "=> Creating admin user ..."
141	CreateMySQLUser
142	OnCreateDB
143	rm /var/lib/mysql/.EMPTY_DB
144	fi
145
146
147	# Import Startup SQL
148	if [ -n "${STARTUP_SQL}" ]; then
149	if [ ! -f /sql_imported ]; then
150	echo "=> Initializing DB with ${STARTUP_SQL}"
151	ImportSql
152	touch /sql_imported
153	fi
154	fi
155
156	# Set MySQL REPLICATION - MASTER
157	if [ -n "${REPLICATION_MASTER}" ]; then
158	echo "=> Configuring MySQL replication as master (2/2) ..."
159	if [ ! -f /replication_set.2 ]; then
160	echo "=> Creating a log user ${REPLICATION_USER}:${REPLICATION_PASS}"
161	mysql -uroot -e "CREATE USER '${REPLICATION_USER}'@'%' IDENTIFIED BY '${REPLICATION_PASS}'"
162	mysql -uroot -e "GRANT REPLICATION SLAVE ON . TO '${REPLICATION_USER}'@'%'"
163	mysql -uroot -e "reset master"
164	echo "=> Done!"
165	touch /replication_set.2
166	else
167	echo "=> MySQL replication master already configured, skip"
168	fi
169	fi
170
171	# Set MySQL REPLICATION - SLAVE
172	if [ -n "${REPLICATION_SLAVE}" ]; then
173	echo "=> Configuring MySQL replication as slave (2/2) ..."
174	if [ -n "${MYSQL_PORT_3306_TCP_ADDR}" ] && [ -n "${MYSQL_PORT_3306_TCP_PORT}" ]; then
175	if [ ! -f /replication_set.2 ]; then
176	echo "=> Setting master connection info on slave"
177	mysql -uroot -e "CHANGE MASTER TO MASTER_HOST='${MYSQL_PORT_3306_TCP_ADDR}',MASTER_USER='${MYSQL_ENV_REPLICATION_USER}',MASTER_PASSWORD='${MYSQL_ENV_REPLICATION_PASS}',MASTER_PORT=${MYSQL_PORT_3306_TCP_PORT}, MASTER_CONNECT_RETRY=30"
178	mysql -uroot -e "start slave"
179	echo "=> Done!"
180	touch /replication_set.2
181	else
182	echo "=> MySQL replication slave already configured, skip"
183	fi
184	else
185	echo "=> Cannot configure slave, please link it to another MySQL container with alias as 'mysql'"
186	exit 1
187	fi
188	fi
189
190	fg

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