update Dockerfile to use local dotfiles in Ubuntu

Dockerfile

@@ -1,5 +1,14 @@
-FROM alpine:edge
-RUN apk --no-cache add git curl
-RUN sh -c "$(curl -fsLS git.io/chezmoi)" -- init --apply candrewlee14
+FROM ubuntu:latest
+RUN apt-get update && \
+    apt-get install -y software-properties-common && \
+    add-apt-repository ppa:fish-shell/release-3 && \
+    apt update && \
+    apt install -y git curl fish sudo && \
+    rm -rf /var/lib/apt/lists/*
+RUN sh -c "$(curl -fsLS get.chezmoi.io)"
+COPY . /root/.local/share/chezmoi/
+
+RUN chezmoi init --apply
+
 ENV SHELL /usr/bin/fish
 CMD ["fish"]