Palier 3: Postfix + Dovecot working! Mail test successful with swaks

dovecot/Dockerfile

@@ -1,22 +1,17 @@
-# Image de base Alpine
-FROM alpine:3.21
+FROM debian:bookworm-slim
 
-# Installer Dovecot (IMAP/POP3) + le module d'authentification
-RUN apk add --no-cache dovecot
+RUN apt-get update && apt-get install -y dovecot-core dovecot-imapd
 
-# --- Utilisateur vmail identique à celui de Postfix (uid/gid 5000) ---
-RUN (deluser vmail 2>/dev/null || true) \
-    && (delgroup vmail 2>/dev/null || true) \
-    && addgroup -g 5000 vmail \
-    && adduser -D -u 5000 -G vmail -h /var/mail/vhosts vmail \
-    && mkdir -p /var/mail/vhosts
+RUN mkdir -p /var/mail/vhosts && \
+    useradd -m -u 5000 -d /var/mail/vhosts vmail || true
 
-# --- Copier nos fichiers de config dans l'image ---
-COPY dovecot.conf /etc/dovecot/dovecot.conf
-COPY users /etc/dovecot/users
+COPY ../share/users.txt /tmp/users.txt
+COPY ../share/dovecot.sh /tmp/dovecot.sh
+
+RUN chmod +x /tmp/dovecot.sh && \
+    /tmp/dovecot.sh > /etc/dovecot/users && \
+    rm /tmp/users.txt /tmp/dovecot.sh
 
-# Exposer les ports IMAP
 EXPOSE 143 993
 
-# Lancer Dovecot au premier plan
 CMD ["dovecot", "-F"]