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54
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1 #!/bin/bash
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159
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2 # Executes a database backup for the specifed database container.
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3 # The current directory is expected to contaion a project configured
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4 # as with SSDT conventions for an application database.
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5 #
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6 # When successful, the output file will be in ./backup with the
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7 # container name and timestamp in the file. The format of the output
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8 # is a compressed pg_dump (sql) format.
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9 #
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10 container=${1?Must provide container name to backup}
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11
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12 source "${SSDT_SCRIPTS:-$(dirname "${BASH_SOURCE[0]}")}/.functions.sh"
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13
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14 set -o pipefail
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15 mkdir -p ./backup
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16 backupFile=./backup/${container}.$(date +%Y-%m-%d-%H-%M-%S).backup
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17
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18 project=$(composeGetProject $container)
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19
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20 if [ "$project" == "" ]; then
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21 echo "no project available"
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22 exit 1
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23 fi
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24
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25 echo "starting backup of $container for $project"
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26 docker-compose exec $container sh -c "gosu postgres pg_dump -Cc --if-exists --dbname=$container ; (exit $?) " > ${backupFile}
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27
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28 if [[ $( grep --count "CREATE TABLE" ${backupFile} ) -lt 200 || $( grep --count "PostgreSQL database dump complete" ${backupFile} ) -eq 0 ]]; then
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29 echo "ERROR: backup verification FAILED"
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30 echo "ERROR: $(tail ${backupFile})"
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31 exit 1
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32 fi
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33
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34 gzip ${backupFile}
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35
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36
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37 echo "completed backup of $container for $project to ${backupFile}"
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38
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