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#!/bin/bash
## When writing relation script, remember:
## - they should be idempotents
## - they can be launched while the dockers is already up
## - they are launched from the host
## - the target of the link is launched first, and get a chance to ``relation-set``
## - both side of the scripts get to use ``relation-get``.
DBNAME=$(relation-get dbname) || {
DBNAME="$BASE_SERVICE_NAME"
relation-set dbname "$DBNAME"
}
USER=$(relation-get user) || {
USER="$BASE_SERVICE_NAME"
relation-set user "$USER"
}
. lib/common
set -e
## YYY: check that password was not already generated/set for the same user
## use session state storage.
## is there a previous password set for user $USER ?
NO_PREVIOUS_PASS=
PREVIOUS_PASSWORD_PATH="$state_tmpdir/$SERVICE_NAME/pwd/$USER"
PREVIOUS_PASSWORD=$(cat "$PREVIOUS_PASSWORD_PATH" 2>/dev/null) || NO_PREVIOUS_PASS=true
if PASSWORD="$(relation-get password 2>/dev/null)"; then
if [ -z "$NO_PREVIOUS_PASS" -a "$PREVIOUS_PASSWORD" != "$PASSWORD" ]; then
die "Inconsistent password specification for user '$USER' on ${DARKYELLOW}$TARGET_SERVICE_NAME$NORMAL."
fi
else
if [ "$PREVIOUS_PASSWORD" ]; then
PASSWORD="${PREVIOUS_PASSWORD}"
else
PASSWORD="$(gen_password)"
info "Generated a new password for user '$USER'."
fi
fi
POSTGIS=$(relation-get postgis 2>/dev/null) || true
UNACCENT=$(relation-get unaccent 2>/dev/null) || true
ensure_db_docker_running
## XXXvlab: should send all these into only one docker...
db_has_database "$DBNAME" || UNACCENT="$UNACCENT" POSTGIS="$POSTGIS" db_create "$DBNAME"
if ! db_has_user "$USER"; then
info "Creating a new user $USER."
db_create_user "$USER" "$PASSWORD"
else
info "Updating password of user $USER."
db_change_password "$USER" "$PASSWORD"
fi
db_grant_rights "$DBNAME" "$USER"
info "Granted rights on database '$DBNAME' to user '$USER'."
##
## PGPASS
##
pgpass_line="*:*:*:$USER:$PASSWORD"
pgpass_file="$CONFIGSTORE/$BASE_SERVICE_NAME/root/.pgpass"
if [ -e "$pgpass_file" ]; then
sed -ri "/^.+:.+:.+:$USER:.*$/d" "$pgpass_file"
fi
mkdir -p "$(dirname "$pgpass_file")"
echo "$pgpass_line" >> "$pgpass_file"
chmod 600 "$pgpass_file"
##
## Saving password
##
relation-set password "$PASSWORD"
mkdir -p "$(dirname "$PREVIOUS_PASSWORD_PATH")"
echo "$PASSWORD" > "$PREVIOUS_PASSWORD_PATH"