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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,27 @@ | ||
| #!/usr/bin/env bash | ||
| # | ||
| # Clean up additional YUM repositories, typically used for security patches. | ||
| # The format of ADDITIONAL_YUM_REPOS is: "repo=patches-repo,name=Install patches,baseurl=http://amazonlinux.$awsregion.$awsdomain/xxxx,priority=10" | ||
| # Multiple yum repos can be specified, separated by ';' | ||
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| if [ -z "${ADDITIONAL_YUM_REPOS}" ]; then | ||
| echo "no additional yum repo, skipping" | ||
| exit 0 | ||
| fi | ||
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| AWK_CMD=' | ||
| BEGIN {RS=";";FS=","} | ||
| { | ||
| delete vars; | ||
| for(i = 1; i <= NF; ++i) { | ||
| n = index($i, "="); | ||
| if(n) { | ||
| vars[substr($i, 1, n-1)] = substr($i, n + 1) | ||
| } | ||
| } | ||
| Repo = "/etc/yum.repos.d/"vars["repo"]".repo" | ||
| } | ||
| {cmd="rm -f " Repo; system(cmd)} | ||
| ' | ||
| sudo awk "$AWK_CMD" <<< "${ADDITIONAL_YUM_REPOS}" |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,37 @@ | ||
| #!/usr/bin/env bash | ||
| # | ||
| # Install additional YUM repositories, typically used for security patches. | ||
| # The format of ADDITIONAL_YUM_REPOS is: "repo=patches-repo,name=Install patches,baseurl=http://amazonlinux.$awsregion.$awsdomain/xxxx,priority=10" | ||
| # which will create the file '/etc/yum.repos.d/patches-repo.repo' having the following content: | ||
| # ``` | ||
| # [patches-repo] | ||
| # name=Install patches | ||
| # baseurl=http://amazonlinux.$awsregion.$awsdomain/xxxx | ||
| # priority=10 | ||
| # ``` | ||
| # Note that priority is optional, but the other parameters are required. Multiple yum repos can be specified, each one separated by ';' | ||
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| if [ -z "${ADDITIONAL_YUM_REPOS}" ]; then | ||
| echo "no additional yum repo, skipping" | ||
| exit 0 | ||
| fi | ||
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| AWK_CMD=' | ||
| BEGIN {RS=";";FS=","} | ||
| { | ||
| delete vars; | ||
| for(i = 1; i <= NF; ++i) { | ||
| n = index($i, "="); | ||
| if(n) { | ||
| vars[substr($i, 1, n-1)] = substr($i, n + 1) | ||
| } | ||
| } | ||
| Repo = "/etc/yum.repos.d/"vars["repo"]".repo" | ||
| } | ||
| {print "["vars["repo"]"]" > Repo} | ||
| {print "name="vars["name"] > Repo} | ||
| {print "baseurl="vars["baseurl"] > Repo} | ||
| {if (length(vars["priority"]) != 0) print "priority="vars["priority"] > Repo} | ||
| ' | ||
| sudo awk "$AWK_CMD" <<< "${ADDITIONAL_YUM_REPOS}" |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,36 @@ | ||
| #!/usr/bin/env bash | ||
| # | ||
| # Do basic validation of the generated AMI | ||
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| # Validates that a file or blob doesn't exist | ||
| # | ||
| # Arguments: | ||
| # a file name or blob | ||
| # Returns: | ||
| # 1 if a file exists, after printing an error | ||
| validate_file_nonexists() { | ||
| local file_blob=$1 | ||
| for f in $file_blob; do | ||
| if [ -e "$f" ]; then | ||
| echo "$f shouldn't exists" | ||
| exit 1 | ||
| fi | ||
| done | ||
| } | ||
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| validate_file_nonexists '/etc/hostname' | ||
| validate_file_nonexists '/etc/resolv.conf' | ||
| validate_file_nonexists '/etc/ssh/ssh_host*' | ||
| validate_file_nonexists '/home/ec2-user/.ssh/authorized_keys' | ||
| validate_file_nonexists '/root/.ssh/authorized_keys' | ||
| validate_file_nonexists '/var/lib/cloud/data' | ||
| validate_file_nonexists '/var/lib/cloud/instance' | ||
| validate_file_nonexists '/var/lib/cloud/instances' | ||
| validate_file_nonexists '/var/lib/cloud/sem' | ||
| validate_file_nonexists '/var/lib/dhclient/*' | ||
| validate_file_nonexists '/var/lib/dhcp/dhclient.*' | ||
| validate_file_nonexists '/var/lib/yum/history' | ||
| validate_file_nonexists '/var/log/cloud-init-output.log' | ||
| validate_file_nonexists '/var/log/cloud-init.log' | ||
| validate_file_nonexists '/var/log/secure' | ||
| validate_file_nonexists '/var/log/wtmp' |