The word “isolation” gets used loosely. A Docker container is “isolated.” A microVM is “isolated.” A WebAssembly module is “isolated.” But these are fundamentally different things, with different boundaries, different attack surfaces, and different failure modes. I wanted to write down my learnings on what each layer actually provides, because I think the distinctions matter and allow you to make informed decisions for the problems you are looking to solve.
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# Clone from an existing container's current state
I’d been using 1Password to store individual secrets for a while, pulling them one at a time with the CLI. Harrison took it a step further. “Why not store the whole .env file’s worth of secrets as fields in a single 1Password item?” he said. Simple. Obvious in hindsight. And it led me down a rabbit hole of rethinking how I handle secrets in every project.