diff --git a/apiserver/docker/Dockerfile b/apiserver/docker/Dockerfile
new file mode 100644
index 000000000..571da3f5e
--- /dev/null
+++ b/apiserver/docker/Dockerfile
@@ -0,0 +1,28 @@
+# -- multistage docker build: stage #1: build stage
+FROM golang:1.13-alpine AS build
+
+RUN mkdir -p /go/src/github.com/daglabs/btcd
+
+WORKDIR /go/src/github.com/daglabs/btcd
+
+RUN apk add --no-cache curl git
+
+COPY go.mod .
+COPY go.sum .
+
+RUN go mod download
+
+COPY . .
+
+RUN cd apiserver && CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o apiserver .
+
+# --- multistage docker build: stage #2: runtime image
+FROM alpine
+WORKDIR /app
+
+RUN apk add --no-cache tini
+
+COPY --from=build /go/src/github.com/daglabs/btcd/apiserver/ /app/
+
+ENTRYPOINT ["/sbin/tini", "--"]
+CMD ["/app/apiserver"]
diff --git a/cmd/txgen/docker/Dockerfile b/cmd/txgen/docker/Dockerfile
index 82ef6f898..b4199302a 100644
--- a/cmd/txgen/docker/Dockerfile
+++ b/cmd/txgen/docker/Dockerfile
@@ -25,5 +25,4 @@ RUN apk add --no-cache tini
 COPY --from=build /go/src/github.com/daglabs/btcd/cmd/txgen/txgen /app/
 
 ENTRYPOINT ["/sbin/tini", "--"]
-
 CMD ["/app/txgen"]
diff --git a/dnsseeder/docker/Dockerfile b/dnsseeder/docker/Dockerfile
index c5125ae1b..2e59d1385 100644
--- a/dnsseeder/docker/Dockerfile
+++ b/dnsseeder/docker/Dockerfile
@@ -5,12 +5,7 @@ RUN mkdir -p /go/src/github.com/daglabs/btcd
 
 WORKDIR /go/src/github.com/daglabs/btcd
 
-RUN apk add --no-cache curl git openssh binutils gcc musl-dev
-RUN go get -u golang.org/x/lint/golint \
-      github.com/kisielk/errcheck \
-      github.com/opennota/check/cmd/aligncheck \
-      github.com/opennota/check/cmd/structcheck \
-      github.com/opennota/check/cmd/varcheck
+RUN apk add --no-cache curl git
 
 COPY go.mod .
 COPY go.sum .
@@ -19,20 +14,15 @@ RUN go mod download
 
 COPY . .
 
-RUN go vet ./...
-# RUN aligncheck ./...
-# RUN structcheck -e ./...
-# RUN varcheck -e ./...
 RUN cd dnsseeder && CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o dnsseeder .
 
 # --- multistage docker build: stage #2: runtime image
 FROM alpine
 WORKDIR /app
 
-RUN apk add --no-cache ca-certificates tini
+RUN apk add --no-cache tini
 
 COPY --from=build /go/src/github.com/daglabs/btcd/dnsseeder/ /app/
 
-USER nobody
-CMD [ "/app/dnsseeder", "-H", "dnsseed.my.home", "-n", "192.168.16.104", "-l", "0.0.0.0:53", "-s", "localhost", "--testnet" ]
-ENTRYPOINT [ "/sbin/tini", "--" ]
+ENTRYPOINT ["/sbin/tini", "--"]
+CMD ["/app/dnsseeder"]
diff --git a/mining/simulator/docker/Dockerfile b/mining/simulator/docker/Dockerfile
index 2cb37ddb9..767f322df 100644
--- a/mining/simulator/docker/Dockerfile
+++ b/mining/simulator/docker/Dockerfile
@@ -25,5 +25,4 @@ RUN apk add --no-cache tini
 COPY --from=build /go/src/github.com/daglabs/btcd/mining/simulator/mining_simulator /app/
 
 ENTRYPOINT ["/sbin/tini", "--"]
-
 CMD ["/app/mining_simulator"]