# postgres's runtime: the tool runtime, carrying this module's compiled provisioner, tools and # event consumer. # # **Built from this module's own directory and nothing else.** The sdk is in the base image, so # nothing is copied out of a neighbouring checkout — which is what lets the mesh build this from a # repository and a path (novox/hq ADR 0069) rather than only on a workstation that happens to have # the siblings. # # Named, not pinned. The mesh answers this with the copy of the runtime it holds, because a # fingerprint written here would name one particular copy — the one on whichever machine the person # typing it was using — and on any other mesh that copy has never existed (novox/hq issue 044). # Declared in module.json's `build.on`; there is deliberately no default, so a build nobody told # stops here rather than on a reference that resolves to nothing. ARG RUNTIME_BASE FROM ${RUNTIME_BASE} AS build # Compiled under /app/modules so `@novox/mesh-sdk` resolves upward into the base's own # node_modules — the module is compiled against exactly the sdk it will run against. WORKDIR /app/modules/postgres COPY . . # The compiler is invoked by its real path rather than through node_modules/.bin, whose entries are # symlinks to a launcher that requires its library relatively — resolved away when the base image # was assembled. RUN node /app/node_modules/typescript/bin/tsc client.ts index.ts provisioner/index.ts tools/index.ts \ --module NodeNext --moduleResolution NodeNext --target ES2022 --outDir dist FROM ${RUNTIME_BASE} # **This module talks to its database through psql, so psql has to be here.** The client is how # postgres's provisioner runs DDL — it does not carry a driver — and the runtime base holds only # what every module needs. RUN apt-get update \ && apt-get install -y --no-install-recommends postgresql-client \ && rm -rf /var/lib/apt/lists/* COPY --from=build /app/modules/postgres/dist /app/modules/postgres/dist # What a tool host should load from this module: its event consumer and its tools, which are # separate entrypoints because they are loaded by different things. The provisioner is the third, # and is not listed here — the declaration names it in the container's `args`, because it is what # this module's own container runs. One image, because they are one module and share a client. ENV MESH_TOOL_MODULES=/app/modules/postgres/dist/index.js,/app/modules/postgres/dist/tools/index.js