build: fix build issue and minimize image

Dockerfile

@@ -4,17 +4,21 @@
 FROM ubuntu:latest
 
 # Install system dependencies
-RUN apt update && apt install -y bash curl jq git make sed ranger vim golang
-
-# Set the working directory
-WORKDIR /app
+RUN apt update \
+    && apt install --no-install-recommends -y bash curl jq git make sed ranger vim golang ca-certificates \
+    && export GOPATH=/usr/local/go \
+    && export PATH=$GOPATH/bin:$PATH \
+    && curl -sSL https://rollkit.dev/install.sh | sh -s v0.13.5 \
+    && go clean -modcache \
+    && apt clean \
+    && rm -rf /var/lib/apt/lists/*
 
 # Make sure GOPATH is set
 ENV GOPATH /usr/local/go
 ENV PATH $GOPATH/bin:$PATH
 
-# Install Rollkit dependencies
-RUN curl -sSL https://rollkit.dev/install.sh | sh -s v0.13.5
+# Set the working directory
+WORKDIR /app
 
 # Install Artela rollup
 RUN mkdir -p /app/artela-rollkit
@@ -27,13 +31,13 @@ WORKDIR /app/artela-rollkit
 RUN rollkit toml init
 
 # Edit rollkit.toml config_dir
-RUN sed -i 's/config_dir = "artroll"/config_dir = "\.\/\.artroll"/g' rollkit.toml
+RUN sed -i 's/config_dir = "artroll"/config_dir = "\/root\/\.artroll"/g' rollkit.toml
 
-# download go pkgs first
-RUN go mod tidy
+# Copy config
+RUN cp -r .artroll /root/.artroll
 
 # Run base rollkit command to download packages
-RUN rollkit
+RUN rollkit && go clean -modcache
 
 # Keep the container running
 CMD tail -F /dev/null