Make pelegant_setup.sh script working

roles/elegant/files/pelegant_setup.sh

 #!/bin/bash
 # bash >= 4 required
 # This script assumes to be run only once per day and overwrites files
-# It also does shouldn't be run for different hosts in parallel
+# It also shouldn't be run for different hosts in parallel
 # Search the "Edit"-line
 # 
 # - This script has not been tested so far
@@ -11,22 +11,39 @@ IFS=$'\n\t'
 
 ############################################################
 # Edit:
-declare -A hosts_cpus=( ["las113"]="6" ["las126"]="11" )
+declare -A host_cpus=( ["129.13.108.79"]="3" ["129.13.108.113"]="6" )
 ############################################################
 
-filename="~/.ssh/Pelegant_$(date --iso)"
-ssh-keygen -f "${filename}" -q
+# main_host=$(hostname -f)
+main_host=$(ip -br -4 addr|\
+	grep '129.13.108.'|\
+	awk '{print $3}'|\
+	cut -d"/" -f1)
 
+printf "Generating SSH keys\n"
+filename=~/.ssh/"id_Pelegant_$(date --iso)"
+ssh-keygen -q -t ed25519 -o -f "${filename}" -C "Pelegant run from ${main_host} at $(date)"
+
+printf "Creating mpihosts file\n"
 if [ -f ~/.mpihosts ]; then
-  mv ~/.mpihosts ~/.mpihosts.${date --iso}
+  /usr/bin/mv ~/.mpihosts ~/.mpihosts.$(date --iso)
 fi
-for cpus in "${!host_cpus[@]}"; do
-  echo "${host_cpus[$cpus]}":${cpus} user=${USER} >> ~/.mpihosts
+for host in "${!host_cpus[@]}"; do
+  /usr/bin/echo "${host}:${host_cpus[$host]}" user=${USER} >> ~/.mpihosts
 done
 
-for cpus in "${!host_cpus[@]}"; do
-  dest="${host_cpus[$cpus]}"
-  ssh-copy-id -i "${filename}" ${dest}
-  scp "${filename}" "${dest}:~/.ssh/"
-  scp "${mpifile}" "${dest}:.mpihosts"
+printf "Copying files and mounting SSHFS\n"
+for host in "${!host_cpus[@]}"; do
+  cpu="${host_cpus[$host]}"
+  printf "SSH copy from %s to %s (%s)", ${main_host}, ${host}, ${filename}
+  scp "${filename}" "${host}:~/.ssh/"
+  scp "${filename}.pub" "${host}:~/.ssh/"
+  ssh-copy-id -i "${filename}" ${host}
+  ssh-copy-id -i "${filename}" ${main_host}
+
+  scp ~/.mpihosts "${host}:.mpihosts"
+
+  curdir=${PWD}
+  ssh -i "${filename}" ${host} "ssh-copy-id -i ${filename} ${main_host}"
+  ssh -i "${filename}" ${host} "mkdir ${curdir} && sshfs ${main_host}:${curdir} ${curdir} -o IdentityFile=\"${filename}\""
 done