mike-jumper commented on code in PR #717:
URL: https://github.com/apache/guacamole-client/pull/717#discussion_r866358028
##########
guacamole-docker/bin/start.sh:
##########
@@ -251,40 +251,97 @@ environment variables or their corresponding Docker
secrets by appending _FILE
to the environment variable, and setting the value to the path of the
corresponding secret:
- POSTGRES_USER The user to authenticate as when connecting to
+ POSTGRESQL_USER The user to authenticate as when connecting to
PostgreSQL.
- POSTGRES_PASSWORD The password to use when authenticating with PostgreSQL
- as POSTGRES_USER.
+ POSTGRESQL_PASSWORD The password to use when authenticating with
PostgreSQL
+ as POSTGRESQL_USER.
- POSTGRES_DATABASE The name of the PostgreSQL database to use for Guacamole
+ POSTGRESQL_DATABASE The name of the PostgreSQL database to use for
Guacamole
authentication.
END
exit 1;
}
+## Provide backward compatibility on POSTGRES_* environment variables
+## In case of new deployment, please use POSTGRESQL_* equivalent variables.
+if [ -n "$POSTGRES_HOSTNAME" ]; then
+ POSTGRESQL_HOSTNAME=$POSTGRES_HOSTNAME;
+fi
+if [ -n "$POSTGRES_PORT" ]; then
+ POSTGRESQL_PORT=$POSTGRES_PORT;
+fi
+if [ -n "$POSTGRES_DATABASE" ]; then
+ POSTGRESQL_DATABASE=$POSTGRES_DATABASE;
+fi
+if [ -n "$POSTGRES_DATABASE_FILE" ]; then
+ POSTGRESQL_DATABASE=$POSTGRES_DATABASE_FILE;
+fi
+if [ -n "$POSTGRES_USER_FILE" ]; then
+ POSTGRESQL_USER_FILE=$POSTGRES_USER_FILE;
+fi
+if [ -n "$POSTGRES_USER" ]; then
+ POSTGRESQL_USER=$POSTGRES_USER;
+fi
+if [ -n "$POSTGRES_PASSWORD_FILE" ]; then
+ POSTGRESQL_PASSWORD_FILE=$POSTGRES_PASSWORD_FILE;
+fi
+if [ -n "$POSTGRES_PASSWORD" ]; then
+ POSTGRESQL_PASSWORD=$POSTGRES_PASSWORD;
+fi
+if [ -n "$POSTGRES_ABSOLUTE_MAX_CONNECTIONS" ]; then
+ POSTGRESQL_ABSOLUTE_MAX_CONNECTIONS=$POSTGRES_ABSOLUTE_MAX_CONNECTIONS;
+fi
+if [ -n "$POSTGRES_DEFAULT_MAX_CONNECTIONS" ]; then
+ POSTGRESQL_DEFAULT_MAX_CONNECTIONS=$POSTGRES_DEFAULT_MAX_CONNECTIONS;
+fi
+if [ -n "$POSTGRES_DEFAULT_MAX_GROUP_CONNECTIONS" ]; then
+
POSTGRESQL_DEFAULT_MAX_GROUP_CONNECTIONS=$POSTGRES_DEFAULT_MAX_GROUP_CONNECTIONS;
+fi
+if [ -n "$POSTGRES_DEFAULT_MAX_CONNECTIONS_PER_USER" ]; then
+
POSTGRESQL_DEFAULT_MAX_CONNECTIONS_PER_USER=$POSTGRES_DEFAULT_MAX_CONNECTIONS_PER_USER;
+fi
+if [ -n "$POSTGRES_DEFAULT_MAX_GROUP_CONNECTIONS_PER_USER" ]; then
+
POSTGRESQL_DEFAULT_MAX_GROUP_CONNECTIONS_PER_USER=$POSTGRES_DEFAULT_MAX_GROUP_CONNECTIONS_PER_USER;
+fi
+if [ -n "$POSTGRES_DEFAULT_STATEMENT_TIMEOUT" ]; then
+ POSTGRESQL_DEFAULT_STATEMENT_TIMEOUT=$POSTGRES_DEFAULT_STATEMENT_TIMEOUT;
+fi
+if [ -n "$POSTGRES_USER_REQUIRED" ]; then
+ POSTGRESQL_USER_REQUIRED=$POSTGRES_USER_REQUIRED;
+fi
+if [ -n "$POSTGRES_SOCKET_TIMEOUT" ]; then
+ POSTGRESQL_SOCKET_TIMEOUT=$POSTGRES_SOCKET_TIMEOUT;
+fi
+if [ -n "$POSTGRES_SSL_KEY_PASSWORD_FILE" ]; then
+ POSTGRESQL_SSL_KEY_PASSWORD_FILE=$POSTGRES_SSL_KEY_PASSWORD_FILE;
+fi
+if [ -n "$POSTGRES_SSL_KEY_PASSWORD" ]; then
+ POSTGRESQL_SSL_KEY_PASSWORD=$POSTGRES_SSL_KEY_PASSWORD;
+fi
Review Comment:
This is lengthy indeed. I think it would be better here to:
1. Leverage indirect references so we can use a loop and not copy/paste the
same `if` block repeatedly.
2. Add a warning message about the deprecation and recommend migration.
For example:
```bash
for VAR_BASE in \
HOSTNAME PORT \
DATABASE USER PASSWORD \
DATABASE_FILE USER_FILE PASSWORD_FILE \
...; do
OLD_VAR="POSTGRES_$VAR_BASE"
NEW_VAR="POSTGRESQL_$VAR_BASE"
if [ -n "${!OLD_VAR}" ]; then
printf -v "$NEW_VAR" "%s" "${!OLD_VAR}"
echo "Some warning about new vs. old..."
fi
done
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