Generate known_hosts file

alpine-ssh-client/Dockerfile

@@ -13,3 +13,16 @@ LABEL org.label-schema.build-date=$BUILD_DATE \
       maintainer="Alan Nelson <alan.nelson@nebraska.edu>"
 
 RUN apk add --no-cache openssh-client ca-certificates rsync
+
+RUN mkdir -p ~/.ssh && chmod 700 ~/.ssh \
+    && touch ~/.ssh/known_hosts && chmod 644 ~/.ssh/known_hosts \
+    && ssh-keyscan its-lampinteg1.unl.edu\
+                   its-lampstage1.unl.edu \
+                   its-lampprod1.unl.edu \
+                   its-linprod2.unl.edu \
+                   y1cap.unl.edu \
+                   passel2.unl.edu \
+                   buros-apps.unl.edu \
+                   its-lrc2.unl.edu \
+                   its-ads-saml-proxy.unl.edu \
+                   >> ~/.ssh/known_hosts