Methods and systems for executing a software application using a container
Systems and methods for running an application program on a database host is disclosed. According to some embodiments, the system comprises an agent installed on the database host. The system further comprises an application engine installed on an application server. The application engine is configured to create and deploy the agent to the database host to be installed. The agent is configured to command a daemon installed on the database host to download a container image of the application program based on a container image name received from the application server.
1. A computer-implemented method for running an application program on a database host, the method comprising:
receiving a container image name from an application server;
communicating with a daemon installed on the database host to command the daemon to retrieve a container image of the application program based on the container image name, wherein the daemon is configured to:
determine whether the daemon includes the container image,
retrieve the container image from a container registry of a registry server in response to determining that the daemon does not include the container image, start a container from the container image, the container comprising an instance of the application program, wherein the container includes dependencies to natively run the instance of the application program on the database host, and wherein the instance of the application program runs within the container natively on the database host to query data from a database of the database host and generate one or more outputs based on the queried data, and
the container communicates one or more outputs generated by the instance of the application program to the application server;
inputting credentials of the database as an environment variable of an environment in which the instance of the application program runs to provide the instance of the application program running within the container access to a database within the database host; and
duplicating the container using the container image to start a second container, the container and the second container to execute instances of the application program in parallel.
2. The method of claim 1 , further comprising:
providing a location of the application server to the container to communicate the outputs generated by the instance of the application program to the application server.
3. A computer-implemented method for running an application program on a database host, the method comprising:
deploying, by an application server, an agent to the database host, wherein the agent is installed on the database host;
sending to the agent, from the application server, a container image name, wherein the agent is configured to command a daemon installed on the database host to download a container image of the application program based on the container image name, wherein the daemon is configured to:
determine whether the daemon includes the container image,
download the container image from a container registry of a registry server in response to determining that the daemon does not include the container image,
start a container from the container image, the container comprising an instance of the application program, wherein the container includes dependencies to natively run the instance of the application program on the database host, and wherein the instance of the application program runs within the container natively on the database host to query a database of the database host and to generate one or more outputs based on the queried data, and
duplicate the container using the container image to start a second container, the container and the second container to execute instances of the application program in parallel; and
receiving and processing the outputs from the container by the application server, wherein the agent is further configured to input credentials of the database as an environment variable of an environment in which the instance of the application program runs to provide the instance of the application program running within the container access to a database within the database host.
4. The method of claim 3 , wherein the agent is further configured to provide a location of the application server to the container to communicate the outputs generated by the instance of the application program to the application server.
5. A system for running an application program on a database host, the system comprising:
a processor-based database host;
a processor-based application server;
an agent installed on the database host; and
an application engine installed on the application server, the application engine configured to create and deploy the agent to the database host to be installed;
wherein the agent is configured to command a daemon installed on the database host to download a container image of the application program based on a container image name received from the application server, wherein the daemon is configured to
determine whether the daemon includes the container image,
download the container image from a container registry of a registry server in response to determining that the daemon does not include the container image,
start a container from the container image, the container comprising an instance of the application program, wherein the container includes dependencies to natively run the instance of the application program on the database host, and wherein the instance of the application program runs in the container natively on the database host to query data from a database of the database host and to generate one or more outputs based on the queried data, and
the application engine is configured to receive and process the outputs from the container, and wherein the agent is further configured to input credentials of the database as an environment variable of an environment in which the instance of the application program runs to provide the instance of the application program access to a database within the database host.
6. The system of claim 5 , wherein the agent is further configured to provide a location of the application server to the container to communicate the outputs to the application engine.