Docker: interner nginx statt socat (Host-Header -> localhost)
Ursache des 404 bei Zugriff über IP/Proxy: .NET-HttpListener bedient den Prefix http://localhost:8077/ nur bei Host: localhost. socat (L4) reicht den originalen Host-Header durch -> 404. Jetzt sitzt ein winziger nginx im Container davor, der den Host-Header auf localhost umschreibt (Upstream [::1]:8077, IPv4 als Fallback). App-Code bleibt unverändert. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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@@ -5,10 +5,11 @@
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# Env-Variablen bzw. das Entrypoint-Script - ohne Codeaenderung.
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FROM mcr.microsoft.com/powershell:7.4-debian-12
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# socat = Bridge 0.0.0.0:BRIDGE_PORT -> 127.0.0.1:APP_PORT (App bindet nur loopback).
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# nginx = interner Reverse-Proxy, der den Host-Header auf "localhost" umschreibt
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# (HttpListener-Prefix http://localhost:8077/ bedient nur Host: localhost).
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# git = fuer das optionale Policy-Git-Snapshot-Feature.
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RUN apt-get update \
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&& apt-get install -y --no-install-recommends socat git ca-certificates \
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&& apt-get install -y --no-install-recommends nginx git ca-certificates \
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&& rm -rf /var/lib/apt/lists/* \
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&& pwsh -NoProfile -Command "Install-Module Microsoft.Graph.Authentication -Scope AllUsers -Force"
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@@ -19,7 +20,8 @@ COPY Start.ps1 ./
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COPY src/ ./src/
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COPY www/ ./www/
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# Entrypoint (neu, nur fuer den Container).
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# Interner nginx-Reverse-Proxy (Host-Rewrite) + Entrypoint (neu, nur fuer Container).
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COPY docker/nginx.conf /etc/nginx/nginx.conf
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COPY docker/docker-entrypoint.sh /usr/local/bin/docker-entrypoint.sh
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RUN chmod +x /usr/local/bin/docker-entrypoint.sh
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