buildx failed with: ERROR: failed to solve: process "/bin/sh -c if [ ${START_RUNTIME} = \"apache\" ]; then \tapt-get update && \tapt-get install --no-install-recommends -y apache2; \telif [ ${START_RUNTIME} = \"nginx\" ]; then \tapt-get update && \tapt-get install --no-install-recommends -y nginx; \tfi" did not complete successfully: exit code: 100