add git providers fingerprints during the build of the image

Author: denis-codefresh

.ssh/config

@@ -1,4 +1 @@
 IdentityFile ~/.ssh/codefresh
-
-Host github.com
-    StrictHostKeyChecking no

Dockerfile

@@ -10,9 +10,13 @@ RUN apk add --no-cache --virtual deps openssl && \
     git lfs install && \
     apk del deps
 
-#add ssh record on which ssh key to use
+# add ssh record on which ssh key to use
 COPY ./.ssh/ /root/.ssh/
 
+# add fingerprint for major git providers
+RUN ssh-keyscan github.com >> /root/.ssh/known_hosts
+RUN ssh-keyscan bitbucket.org >> /root/.ssh/known_hosts
+
 COPY ./start.sh /run/start.sh
 RUN chmod +x /run/start.sh
 

Dockerfile.aarch64

@@ -1,5 +1,5 @@
 FROM arm64v8/alpine:3.7
-RUN apk add --no-cache git bash openssh
+RUN apk add --no-cache git bash
 
 # install git-lfs
 RUN apk add --no-cache --virtual deps openssl && \
@@ -9,9 +9,13 @@ RUN apk add --no-cache --virtual deps openssl && \
     git lfs install && \
     apk del deps
 
-#add ssh record on which ssh key to use
+# add ssh record on which ssh key to use
 COPY ./.ssh/ /root/.ssh/
 
+# add fingerprint for major git providers
+RUN ssh-keyscan github.com > /root/.ssh/known_hosts
+RUN ssh-keyscan bitbucket.org > /root/.ssh/known_hosts
+
 COPY ./start.sh /run/start.sh
 RUN chmod +x /run/start.sh