From 25267f015c4a9bcdd6d7d3cb54ede86019cbf382 Mon Sep 17 00:00:00 2001
From: Gertjan <info@gertjankrol.nl>
Date: Sat, 22 Jan 2022 02:17:59 +0100
Subject: [PATCH] Made the image a lot smaller

---
 Dockerfile | 25 +++++++++++++------------
 1 file changed, 13 insertions(+), 12 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index 61c5721..e160d80 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,16 +1,17 @@
 FROM alpine:3.15.0
 
-# Install required dependencies to build unbound (and bind-tools for dig in healthcheck)
-RUN apk update && apk add --no-cache alpine-sdk bind-tools expat-dev git libressl-dev
-
-# Clone and build unbound source (https://github.com/NLnetLabs/unbound)
-RUN mkdir -p /tmp/unbound
-RUN git clone --depth 1 --branch 'release-1.14.0' https://github.com/NLnetLabs/unbound.git /tmp/unbound
-RUN cd /tmp/unbound && ./configure && make && make install
-
-# Cleanup build tools
-RUN apk del alpine-sdk expat-dev git
-RUN rm -rf /tmp/*
+# Install required dependencies and build unbound (and install bind-tools for dig in healthcheck)
+RUN apk --update add --no-cache alpine-sdk bind-tools expat-dev git openssl-dev && \
+    # Clone and build unbound source (https://github.com/NLnetLabs/unbound)
+    git clone --depth 1 --branch 'release-1.14.0' https://github.com/NLnetLabs/unbound.git /tmp/unbound && \
+    cd /tmp/unbound && \
+    ./configure && \
+    make && \
+    make install && \
+    make clean && \
+    # Cleanup build tools
+    rm -rf /tmp/* && \
+    apk del alpine-sdk expat-dev git openssl-dev
 
 # Prepare unbound files
 COPY entrypoint.sh /
@@ -18,7 +19,7 @@ RUN mkdir -p /srv/unbound
 COPY unbound.conf /srv/unbound/unbound.conf
 
 # Prepare
-RUN adduser unbound --disabled-password
+RUN adduser -S unbound --disabled-password
 
 # Health
 HEALTHCHECK --interval=60s --timeout=3s --retries=2 \