diff --git a/.gitignore b/.gitignore
index d8fa3e3..2b2a8c8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,23 @@
-/target
+### Generated by gibo (https://github.com/simonwhitaker/gibo)
+### https://raw.github.com/github/gitignore/4488915eec0b3a45b5c63ead28f286819c0917de/Rust.gitignore
+
+# Generated by Cargo
+# will have compiled files and executables
+debug/
+target/
+
+# Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
+# More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
+Cargo.lock
+
+# These are backup files generated by rustfmt
+**/*.rs.bk
+
+# MSVC Windows builds of rustc generate these, which store debugging information
+*.pdb
+
+# Commitlint binary
+commitlint
+
+# Commitlint config file
 .commitlintrc.*
diff --git a/Dockerfile b/Dockerfile
index 76965b0..d88bd76 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,8 +3,8 @@ WORKDIR /app
 
 RUN apk update \
     && apk add --no-cache musl-dev
-COPY . .
-RUN cargo install --path .
+
+RUN --mount=type=bind,target=. cargo install --path .
 
 FROM alpine
 LABEL maintainer="KeisukeYamashita <19yamashita15@gmail.com>"