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feat: runtime-configurable instance-info via env vars
Docker entrypoint generates /srv/instance-info.json from INSTANCE_*
environment variables at container startup. If no env vars are set,
the baked-in file (open access, no allowlist) is used as the default.
This moves the allowlist out of source code so it can be configured
per-deployment via Nomad env, docker-compose, or volume mount.
Env vars: INSTANCE_FLAVOR, INSTANCE_OPERATOR, INSTANCE_PDS,
INSTANCE_FEATURES, INSTANCE_ACCESS_MODE, INSTANCE_ALLOWLIST,
INSTANCE_NOTICE.
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Dockerfile
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Dockerfile
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LABEL org.opencontainers.image.source="https://tangled.org/scottlanoue.com/atmosphere-office"
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LABEL org.opencontainers.image.licenses="AGPL-3.0"
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COPY Caddyfile /etc/caddy/Caddyfile
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COPY docker-entrypoint.sh /docker-entrypoint.sh
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COPY --from=builder /app/dist /srv
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EXPOSE 8080
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ENTRYPOINT ["/docker-entrypoint.sh"]
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CMD ["caddy", "run", "--config", "/etc/caddy/Caddyfile", "--adapter", "caddyfile"]
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docker-compose.yml
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docker-compose.yml
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##
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## Then visit http://localhost:8080
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##
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## Configure instance-info.json to match your deployment:
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## - Set "flavor" to "pds-operator" or "self-hosted"
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## - Set "operator" to your organization name
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## - Set "pds" to your PDS hostname (if applicable)
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## - Enable features as you deploy backend services
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## Configure your instance via environment variables:
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## INSTANCE_FLAVOR — public, pds-operator, or self-hosted
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## INSTANCE_OPERATOR — your organization name
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## INSTANCE_PDS — your PDS hostname
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## INSTANCE_FEATURES — comma-separated: sync,sharing,ai
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## INSTANCE_ACCESS_MODE — open or allowlist
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## INSTANCE_ALLOWLIST — comma-separated DIDs (when mode=allowlist)
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## INSTANCE_NOTICE — banner notice text
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##
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## Or mount a custom instance-info.json:
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## volumes:
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## - ./instance-info.json:/srv/instance-info.json:ro
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services:
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office:
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image: atcr.io/scottlanoue.com/atmosphere-office:latest
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ports:
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- "8080:8080"
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volumes:
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- ./instance-info.json:/srv/instance-info.json:ro
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environment:
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- INSTANCE_FLAVOR=self-hosted
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restart: unless-stopped
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docker-entrypoint.sh
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docker-entrypoint.sh
···
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#!/bin/sh
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set -e
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# Generate /srv/instance-info.json from environment variables.
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# If INSTANCE_FLAVOR is not set, the baked-in file from the build is used as-is.
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if [ -n "$INSTANCE_FLAVOR" ]; then
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SYNC=false; SHARING=false; AI=false
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case ",$INSTANCE_FEATURES," in *,sync,*) SYNC=true;; esac
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case ",$INSTANCE_FEATURES," in *,sharing,*) SHARING=true;; esac
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case ",$INSTANCE_FEATURES," in *,ai,*) AI=true;; esac
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OP=null
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[ -n "$INSTANCE_OPERATOR" ] && OP="\"$INSTANCE_OPERATOR\""
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PDS=null
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[ -n "$INSTANCE_PDS" ] && PDS="\"$INSTANCE_PDS\""
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NOTICE=null
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[ -n "$INSTANCE_NOTICE" ] && NOTICE="\"$INSTANCE_NOTICE\""
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AC=null
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if [ "$INSTANCE_ACCESS_MODE" = "allowlist" ] && [ -n "$INSTANCE_ALLOWLIST" ]; then
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DIDS=$(printf '%s' "$INSTANCE_ALLOWLIST" | sed 's/,/","/g')
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AC="{\"mode\":\"allowlist\",\"allowlist\":[\"$DIDS\"]}"
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elif [ "$INSTANCE_ACCESS_MODE" = "open" ]; then
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AC="{\"mode\":\"open\"}"
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fi
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cat > /srv/instance-info.json <<EOF
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{
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"flavor": "$INSTANCE_FLAVOR",
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"operator": $OP,
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"pds": $PDS,
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"features": {
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"sync": $SYNC,
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"sharing": $SHARING,
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"ai": $AI
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},
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"notice": $NOTICE,
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"accessControl": $AC
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}
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EOF
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fi
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exec "$@"