Fix collisions with existing user and group ids #27
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Do not add groups or users if ther gid or uid already exists in the base image. We also make useradd and the USER instruction depend on numeric ids since we can't guarantee that a group or user with name 'app' exists. The USER instruction now also includes the group id to ensure that any created files have the expected user and group ownership.
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Do not add groups or users if ther gid or uid already exists in the base image. We also make useradd and the USER instruction depend on numeric ids since we can't guarantee that a group or user with name
appexists.The USER instruction now also includes the group id to ensure that any created files have the expected user and group ownership.