# Build and Push to Docker Registry - Kaniko container runtime error

## Module
Harness-CI

## Environment

## Issue

While building and pushing an image to the docker registry, one can encounter the following error:


``exit status 1 Found possible error on line 2. Log: kaniko should only be run inside of a container, run with the --force flag if you are sure you want to continue . Possible error: Kaniko container runtime error``

## Resolution

The resolution is to add an environment stage variable named "container" with a value "docker".

## Diagnostic Steps

Follow these simple steps to do add a stage variable:

- Go to variables
- Go to the stage where `build and push to docker` registry is step.
- Go to `stage variable` -> `Add variable`
- Write variable name as `container` and type will be `string` and then select `Save`.
- Give the value of the variable as `docker`.
- Click on `Apply Changes`.