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103 lines
2.8 KiB
103 lines
2.8 KiB
#!/bin/bash
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## When writing relation script, remember:
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## - they should be idempotents
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## - they can be launched while the dockers is already up
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## - they are launched from the host
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## - the target of the link is launched first, and get a chance to ``relation-set``
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## - both side of the scripts get to use ``relation-get``.
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DBNAME=$(relation-get dbname) || {
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DBNAME="$BASE_SERVICE_NAME"
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relation-set dbname "$DBNAME"
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}
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USER=$(relation-get user) || {
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USER="$BASE_SERVICE_NAME"
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relation-set user "$USER"
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}
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. lib/common
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set -e
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## YYY: check that password was not already generated/set for the same user
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## use session state storage.
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## is there a previous password set for user $USER ?
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NO_PREVIOUS_PASS=
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PREVIOUS_PASSWORD_PATH="$state_tmpdir/$SERVICE_NAME/pwd/$USER"
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PREVIOUS_PASSWORD=$(cat "$PREVIOUS_PASSWORD_PATH" 2>/dev/null) || NO_PREVIOUS_PASS=true
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if PASSWORD="$(relation-get password 2>/dev/null)"; then
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if [ -z "$NO_PREVIOUS_PASS" -a "$PREVIOUS_PASSWORD" != "$PASSWORD" ]; then
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die "Inconsistent password specification for user '$USER' on ${DARKYELLOW}$TARGET_SERVICE_NAME$NORMAL."
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fi
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else
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if [ "$PREVIOUS_PASSWORD" ]; then
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PASSWORD="${PREVIOUS_PASSWORD}"
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else
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PASSWORD="$(gen_password)"
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info "Generated a new password for user '$USER'."
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fi
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fi
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array_read-0 extensions < <(relation-get extensions 2>/dev/null | shyaml get-values-0)
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ensure_db_docker_running
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## XXXvlab: should send all these into only one docker...
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if ! db_has_database "$DBNAME"; then
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INITDB_ARGS=(encoding lc-collate lc-ctype template)
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CREATEDB_OPTS=()
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for option in "${INITDB_ARGS[@]}"; do
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value="$(relation-get "$option" 2>/dev/null)" || true
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if [ -n "$value" ]; then
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CREATEDB_OPTS+=("--$option=$value")
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fi
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done
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db_create "$DBNAME" "${CREATEDB_OPTS[@]}" || exit 1
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if sql=$(relation-get init-sql); then
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ddb "$DBNAME" > /dev/null < <(e "$sql") || exit 1
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fi
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fi
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if [ "${#extensions[@]}" -gt 0 ]; then
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db_install_extensions "$DBNAME" "${extensions[@]}" || exit 1
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fi
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if ! db_has_user "$USER"; then
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info "Creating a new user $USER."
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db_create_user "$USER" "$PASSWORD" || exit 1
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else
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info "Updating password of user $USER."
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db_change_password "$USER" "$PASSWORD" || exit 1
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fi
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db_grant_rights "$DBNAME" "$USER"
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info "Granted rights on database '$DBNAME' to user '$USER'."
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##
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## PGPASS
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##
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pgpass_line="*:*:*:$USER:$PASSWORD"
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pgpass_file="$CONFIGSTORE/$BASE_SERVICE_NAME/root/.pgpass"
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if [ -e "$pgpass_file" ]; then
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sed -ri "/^.+:.+:.+:$USER:.*$/d" "$pgpass_file"
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fi
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mkdir -p "$(dirname "$pgpass_file")"
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echo "$pgpass_line" >> "$pgpass_file"
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chmod 600 "$pgpass_file"
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##
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## Saving password
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##
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relation-set password "$PASSWORD"
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mkdir -p "$(dirname "$PREVIOUS_PASSWORD_PATH")"
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echo "$PASSWORD" > "$PREVIOUS_PASSWORD_PATH"
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