summaryrefslogtreecommitdiffstats
path: root/kubernetes/config
diff options
context:
space:
mode:
authormayankg2703 <mayank.gupta@amdocs.com>2017-11-22 11:34:59 +0000
committerAlexis de Talhouƫt <alexis.de_talhouet@bell.ca>2018-01-09 13:11:41 +0000
commitc3071ccc300dec664b774e60063bc94fd90e006e (patch)
tree121b2e4a72869868c04e159da8fcdc323f4fb2be /kubernetes/config
parent678ae0eba6bde06c04b9ae9f889713285f6061df (diff)
Dynamic preload docker images script
Issue-ID: OOM-328 Change-Id: I7a646f53df0ac11cf3c1895243f905b7fe210b3c Signed-off-by: mayankg2703 <mayank.gupta@amdocs.com>
Diffstat (limited to 'kubernetes/config')
-rwxr-xr-xkubernetes/config/prepull_docker.sh145
1 files changed, 145 insertions, 0 deletions
diff --git a/kubernetes/config/prepull_docker.sh b/kubernetes/config/prepull_docker.sh
new file mode 100755
index 0000000000..e456c3e016
--- /dev/null
+++ b/kubernetes/config/prepull_docker.sh
@@ -0,0 +1,145 @@
+#!/bin/bash
+
+#function to provide help
+#desc: this function provide help menu
+#argument: -h for help, -p for path, -r for repository
+#calling syntax: options
+
+options() {
+ cat <<EOF
+Usage: $0 [PARAMs]
+-h : help
+-l (Location) : path for searching values.yaml
+ [in case no path is provided then is will scan current directories for values.yml]
+-r (Repository) : name of image repository
+ [format [repository name/url]:(port)]
+ [in case no repository is provided then defualt image repository will be nexus3.onap.org:10001]
+-u (User) : user name for login
+ [in case no user name is provided then default user will be docker]
+-p (Password) : password for login
+ [in case no password is provided then default user will be docker]
+EOF
+}
+
+#function to parse yaml file
+#desc: this function convert yaml file to dotted notion
+#argument: yaml file
+#calling syntax: parse_yaml <yaml_file_name>
+
+function parse_yaml {
+ local prefix=$2
+ local s='[[:space:]]*' w='[a-zA-Z0-9_]*' fs=$(echo @|tr @ '\034')
+ sed -ne "s|^\($s\):|\1|" \
+ -e "s|^\($s\)\($w\)$s:$s[\"']\(.*\)[\"']$s\$|\1$fs\2$fs\3|p" \
+ -e "s|^\($s\)\($w\)$s:$s\(.*\)$s\$|\1$fs\2$fs\3|p" $1 |
+ awk -F$fs '{
+ indent = length($1)/2;
+ vname[indent] = $2;
+ for (i in vname) {if (i > indent) {delete vname[i]}}
+ if (length($3) > 0) {
+ vn=""; for (i=0; i<indent; i++) {vn=(vn)(vname[i])(".")}
+ printf("%s%s%s=\"%s\"\n", "'$prefix'",vn, $2, $3);
+ }
+ }'
+}
+
+#algorithmic steps
+#start
+#scan all values.yaml files
+#parse yaml file into dotted format
+#for each lines check there is image tag in line
+#store image name and check next line for version information
+#if in next line version is not present as a subtag then call docker pull with imageName
+#if version is present in next line then call docker pull with imageName and imageVersion
+#end
+
+
+#start processing for finding images and version
+IMAGE_TEXT="image"
+IMAGE_VERSION_TEXT="Version"
+LOCATION="."
+VALUES_FILE_NAME="values.yaml"
+IMAGE_REPOSITORY="nexus3.onap.org:10001"
+USER_NAME="docker"
+PASSWORD="docker"
+
+#scan for options menu
+while getopts ":h:l:r:u:p:" PARAM; do
+ case $PARAM in
+ h)
+ options
+ exit 1
+ ;;
+ l)
+ LOCATION=${OPTARG}
+ ;;
+ r)
+ IMAGE_REPOSITORY=${OPTARG}
+ ;;
+ u)
+ USER_NAME=${OPTARG}
+ ;;
+ p)
+ PASSWORD=${OPTARG}
+ ;;
+ ?)
+ options
+ exit
+ ;;
+ esac
+done
+
+
+#docker login to nexus repo
+echo docker login -u $USER_NAME -p $PASSWORD $IMAGE_REPOSITORY
+docker login -u $USER_NAME -p $PASSWORD $IMAGE_REPOSITORY
+
+#scan all values.yaml files recursively
+for filename in `find $LOCATION -name $VALUES_FILE_NAME`
+do
+ imageNameWithVersion=" ";
+ #parse yaml files
+ for line in `parse_yaml $filename`
+ do
+ #find all image subtag inside converted values.yaml file's lines
+ if echo $line | grep -q $IMAGE_TEXT ; then
+ #find imageName inside line
+ imageName=`echo $line | awk -F "=" '{print $2}'`
+ #remove attional prefix and postfix
+ imageNameFinal=`echo "$imageName" | sed -e 's/^"//' -e 's/"$//' `
+
+ #check if line contain Version as a subtag in lines if yes then call docker pull with version
+ if echo $line | grep -q $IMAGE_VERSION_TEXT ; then
+ echo docker pull "$imageNameWithVersion":"$imageNameFinal"
+ docker pull $imageNameWithVersion:$imageNameFinal &
+ imageNameWithVersion=" "
+ else
+ #check Version is not in subtag and old scanned value is present then call docker pull without version
+ if [ "$imageNameWithVersion" != " " ]; then
+ echo docker pull "$imageNameWithVersion"
+ docker pull $imageNameWithVersion &
+ imageNameWithVersion=$imageNameFinal
+ else
+ imageNameWithVersion=$imageNameFinal
+ fi
+ fi
+
+
+ fi
+
+
+ done
+done
+# complete processing
+echo "finished launching pulls"
+#MAX_WAIT_INTERVALS=300
+INTERVAL_COUNT=300
+while [ $(ps -ef | grep docker | grep pull | grep -v $0 | wc -l) -gt 0 ]; do
+ sleep 10
+ INTERVAL_COUNT=$((INTERVAL_COUNT - 1))
+ echo "waiting for last pull"
+ if [ "$INTERVAL_COUNT" -eq 0 ]; then
+ break
+ fi
+done
+