From 5c52e6e32acf5a62c8f95418312f6cb371aec37c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jan=20Lo=C5=A1=C5=A5=C3=A1k?= <xlostak@gmail.com>
Date: Sat, 28 Mar 2026 01:06:48 +0100
Subject: [PATCH] Fixed buildx issue

---
 Dockerfile | 14 ++++++++++++--
 README.md  |  3 +--
 2 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index 385bc6c..dea01b5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -45,6 +45,12 @@ RUN mkdir -p /opt/postfix-libs \
     | sort -u \
     | xargs -r -I '{}' cp -v --parents '{}' /opt/postfix-libs
 
+RUN cd /opt/postfix-dist \
+ && tar -cf /opt/postfix-dist.tar .
+
+RUN cd /opt/postfix-libs \
+ && tar -cf /opt/postfix-libs.tar .
+
 # Final image
 FROM ubuntu:24.04
 
@@ -61,8 +67,12 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     ssl-cert \
  && rm -rf /var/lib/apt/lists/*
 
-COPY --from=builder /opt/postfix-dist/ /
-COPY --from=builder /opt/postfix-libs/ /
+COPY --from=builder /opt/postfix-dist.tar /tmp/postfix-dist.tar
+COPY --from=builder /opt/postfix-libs.tar /tmp/postfix-libs.tar
+
+RUN tar -C / -xf /tmp/postfix-dist.tar \
+ && tar -C / -xf /tmp/postfix-libs.tar \
+ && rm -f /tmp/postfix-dist.tar /tmp/postfix-libs.tar
 
 # Create postfix user and group
 RUN groupadd -r postfix \
diff --git a/README.md b/README.md
index e94a249..c63b468 100644
--- a/README.md
+++ b/README.md
@@ -161,5 +161,4 @@ POSTFIX_SMTPS_TLS_WRAPPERMODE="yes"
 - The container configures `/etc/postfix/main.cf` using `postconf -e`.
 - `/etc/aliases` is created automatically if missing, and `newaliases` is run on startup.
 - `/etc/resolv.conf` is copied into `/var/spool/postfix/etc/resolv.conf` so DNS lookups work in chrooted Postfix services.
-- `POSTFIX_SMTPD_MILTERS` and `POSTFIX_NON_SMTPD_MILTERS` should contain only `host:port`. The script adds the `inet:` prefix automatically.
-- TLS certificate and key files must exist inside the container if TLS is enabled.
\ No newline at end of file
+- `POSTFIX_SMTPD_MILTERS` and `POSTFIX_NON_SMTPD_MILTERS` should contain only `host:port`. The script adds the `inet:` prefix automatically.
\ No newline at end of file