Update Dockerfile, fix yq

package/Dockerfile

@@ -1,6 +1,7 @@
 FROM ubuntu:18.04
 RUN sed -i 's:^path-exclude=/usr/share/man:#path-exclude=/usr/share/man:' /etc/dpkg/dpkg.cfg.d/excludes
 RUN apt-get update && \
+    export DEBIAN_FRONTEND=noninteractive && \
     apt-get install --no-install-recommends -y \
         arping \
         arptables \
@@ -18,7 +19,6 @@ RUN apt-get update && \
         iptables \
         iputils-ping \
         jq \
-        yq \
         kmod \
         ldap-utils \
         less \
@@ -52,7 +52,9 @@ RUN apt-get update && \
     curl -sLf https://storage.googleapis.com/kubernetes-release/release/v1.18.0/bin/linux/amd64/kubectl > /usr/local/bin/kubectl-1.18 && \
     chmod +x /usr/local/bin/kubectl* && \
     ln -s /usr/local/bin/kubectl-1.18 /usr/local/bin/kubectl && \
-    mkdir /root/.kube
+    wget https://github.com/mikefarah/yq/releases/download/v4.23.1/yq_linux_amd64 -O /usr/bin/yq && \
+    chmod +x /usr/bin/yq && \
+    mkdir -p /root/.kube
 
 ENV LOGLEVEL_TAG v0.1
 RUN curl -sfSL https://github.com/rancher/loglevel/releases/download/${LOGLEVEL_TAG}/loglevel-amd64-${LOGLEVEL_TAG}.tar.gz | tar xvzf - -C /usr/bin